Romans 9:25-29 – Israel in Prophecy

In these verses, Paul quotes the prophets Hosea 2:23 and 1:10: “I will call them my people, which were not my people…” and Isaiah 10:22-23 and 1:9: “Though the number of the children of Israel be as the sand of the sea, a remnant shall be saved…”

These are not Paul’s own words but Old Testament prophecies. When studying quotations such as these, it’s important to read both the New Testament context and the original Old Testament context. That helps us understand why Paul uses these passages and how they support his argument.

Romans chapters 9-11 explain what happened to Israel in light of Paul’s message of salvation by grace through Christ’s finished work for both Jew and Gentile.
Now, why are we even interested in Israel?
Because the Bible is Israel’s story. It’s not that the Bible is for the Church and Israel’s a sort of byproduct. It’s actually more the opposite.
The Bible is about God’s plan for the universe, and you and me and that plan was always intended to be fulfilled through Israel. Nothing has changed. Even in the dispensation of grace we find ourselves living in today, where there is no Jew or Gentile but a new creature, the Body of Christ, Israel and God’s plan is still perfectly in place. We’re interested in Israel because, without knowledge of it- where it came from, its history with God, and its future- we’re lacking vital information about ourselves and our own salvation.
This is why we broke off our Romans study after chapter 8 and studied Hosea, because in Hosea and the prophets we learn not only about Israel’s rise, fall and future rise again, but how that affects us today in the Body of Christ and how the heaven and earth will be shaped in the future.

So, if Israel rejected Christ and Paul’s message, what happened to God’s promises to them? Has the Word of God failed?
Paul answers, No in Romans 9:6.
God’s Word has not failed because Scripture never taught that every Israelite would automatically receive the promised blessings. Throughout Israel’s history, God dealt with people according to His promise and mercy, not merely according to their physical descent. It was always the ones who believed, who had faith in what God said, who received the promises He made.

Paul illustrates this with the image of the potter and the clay, as we saw in Romans 9:21. God formed Israel and has the right to show mercy to some and harden others within that same nation. Being an Israelite in itself did not guarantee the promised glory.
Romans 9:22-24 explains that God endured “vessels of wrath” with great longsuffering so that He could make known “the riches of his glory” upon “vessels of mercy.”
This wasn’t a new idea.
The Old Testament repeatedly shows God judging unbelieving Israelites while preserving those who received His mercy. God’s purpose has always been to make His glory known through mercy and grace, not merely through judgment.
Mercy is something people receive that they don’t deserve. Sinners deserve judgment, but God delights in showing mercy. He’s never obligated to give blessing, yet He desires to extend mercy according to His own purpose.
One of Paul’s main points is that God’s judgment is not limited to Gentiles.
Just as Pharaoh, Assyria, and Babylon experienced God’s wrath, so could Israel. The Old Testament records this repeatedly. Israel often broke God’s covenant and suffered God’s judgment.
Therefore, simply being part of Israel didn’t guarantee God’s approval. God still has covenants and promises to fulfil, but the real question to israel is: Which Israel are you? Are you among those who receive God’s mercy, or among those who persist in unbelief and deserve judgment? Paul’s going to answer this later in the chapter.
Just as God’s judgment can fall upon both Jew and Gentile, His mercy can also be extended to both. This has always been part of God’s plan.
God chose Abraham so that all families of the earth would be blessed through him. Israel received special privileges, the covenants, and the oracles of God, but these were never intended to stop with Israel. God’s compassion, goodness, and mercy were meant to flow through Israel to the nations. They were intended to be a nation of priests, mediators between God and the other nations.

The prophecies from Hosea and Isaiah support Paul’s argument: God has always intended to show mercy according to His promise, preserving a believing remnant in Israel while also extending His mercy beyond Israel to the Gentiles. God’s Word has not failed. Instead, the Scriptures themselves testify that mercy, not mere physical descent, determines who receives the blessings God promises.

Paul continues explaining that God’s mercy was never intended for Israel alone.
Romans 9:24, which we looked at in depth in the last episode, says that God prepared vessels of mercy “even us, whom he hath called, not of the Jews only, but also of the Gentiles.” This doesn’t mean Gentile salvation is a new idea. Throughout Scripture, God showed mercy to Gentiles.
Jesus ministered mercy to Gentiles during His earthly ministry, and the Gentiles of Nineveh received God’s mercy in Jonah’s day, and Paul expands this in Romans 15:8-12.
Jesus Christ was “a minister of the circumcision” to confirm God’s promises to Israel, but the purpose was larger: “that the Gentiles might glorify God for his mercy.”
Israel was chosen so God’s blessing and mercy could flow through them to the nations. Paul uses several Old Testament quotations showing Gentiles rejoicing with Israel, praising the Lord, and trusting in the Root of Jesse, Jesus Christ.
God’s plan was always for Jew and Gentile together to receive His mercy.

This helps explain Romans 9.
God formed Israel as a vessel through which His glory and mercy would be made known. As the Potter, He has the right to make from the same lump vessels unto honour and others unto dishonour, as we saw in the last two episodes.
The glory belongs to Israel according to God’s promises, as Romans 9:4 points out, yet Scripture repeatedly shows that not all Israel receives that glory. It comes by promise and mercy, not merely by physical descent. The true heirs are those who respond in faith and receive God’s mercy.

We see a critical key here: God can only show mercy to those who need it. Mercy is for sinners, not for people who think they deserve God’s favour. If God intends to show mercy to Israel, that implies Israel must recognise its need. Throughout their history, God gave them every advantage, raising them above the nations, giving them His covenants, law, prophets, and promises, yet they continually fell into sin, rejecting what He gave them through unbelief.

So, what happened to Israel?
Paul’s answer is simple: Israel fell. But this doesn’t mean God’s Word failed. In fact, Israel’s history demonstrates exactly what God was teaching all along: even a nation given every spiritual advantage can’t achieve righteousness through the flesh. Israel became a living example that all mankind needs God’s mercy.
Repentance and faith were always necessary. Just like the publican in Luke 18 who cried, “God, be merciful to me, a sinner,” Israel had to acknowledge its sinful condition to receive mercy.
The tragedy is that when Christ came offering forgiveness, many rejected Him. Even after His resurrection, when the Holy Spirit was sent and mercy was still being offered, many continued to resist. They rejected the very means by which God intended to fulfil His promises to them.
Paul connects this truth back to Romans 4.
Abraham himself learned that justification was not by works or fleshly effort. “Abraham believed God, and it was counted unto him for righteousness.”
God justifies the ungodly. Therefore, Israel’s hope was never in its nationality, its heritage, or its fleshly standing, but in believing God’s promise and receiving His mercy by faith.

God’s mercy is still available to Israel today. Paul shows later in Romans 11 that any unbelieving Jew can still be saved by God’s grace. God’s Word hasn’t failed. It continues to operate exactly as He intended. He’s still extending mercy to sinners, not rewarding human merit.
This helps us understand God’s longsuffering, His patience.
Throughout Israel’s history, God patiently endured rebellion before bringing deliverance and blessing. Salvation came after long periods of mercy and forbearance.
Peter expresses the same principle in 2 Peter 3 when he says that “the longsuffering of our Lord is salvation.” Paul says this’s always been God’s way. He patiently endures sinners so that His mercy, grace, and salvation might be made known to those who believe.
Paul shows that Israel’s present condition actually confirms what God’s always taught about salvation.
Romans 11:11 says, “through their fall salvation is come unto the Gentiles,” and Romans 11:32 says God “concluded them all in unbelief, that he might have mercy upon all.” Israel’s fall highlights the same principle that operates in this dispensation of grace: God saves those who recognise their need and trust His mercy.
Today, salvation comes when a sinner stops trusting the flesh, trusting in his own works, and trusts Christ’s finished work.
Although those in time past didn’t understand the cross as we do today, God still required them to acknowledge their sin and rely on His mercy. That’s always been His desire: to make known the riches of His mercy and grace.

Paul, the apostle of grace, is uniquely suited to explain what happened to Israel.
Their main problem was not just that they rejected specific prophecies or misunderstood details of the Law. Their deeper problem was that they failed to acknowledge their sinful condition. Salvation begins when a person admits, “I’m a sinner, and I need God’s mercy.” If that step’s missing, everything else is affected.
Paul’s explanation of Israel throughout Romans chapters 9-11 follows the same pattern he already established earlier in Romans. Israel receives salvation by promise, not by fleshly descent. Romans 9 emphasises this repeatedly.
Just as neither Jews nor Gentiles today can obtain salvation through their flesh, Israel can’t receive her promises merely because of physical ancestry.

In Romans 10, Paul explains that Israel receives salvation by faith, not by the Law. This is the same truth taught throughout Romans. Israel’s future salvation depends on believing God and trusting Christ, not on their own works or righteousness.
In Romans 11, Paul explains that Israel’s salvation is ultimately by grace. There is “a remnant according to the election of grace.” Promise, faith, and grace define God’s salvation with both Israel and sinners today.
Paul is never teaching that Israel and the Body of Christ are the same. Nor is he saying that the prophets foretold the mystery or the Church.
Instead, he’s showing that the principles of promise, faith, grace, and mercy found in his gospel are consistent with what the prophets said about how God would save Israel. The mystery was hidden, but these foundational truths were not, so we mustn’t confuse prophecy and mystery. The prophets did not reveal the Body of Christ, yet they did teach that God’s blessings come by promise, faith, and grace rather than human effort. Understanding the mystery helps us better understand what God was doing with Israel all along.
Many misunderstand Romans chapters 9-11. Seeing Paul discuss grace, faith, and mercy alongside Old Testament prophecy makes some people conclude that the Church replaces Israel or that prophecy and mystery are identical. Paul doesn’t teach either of those. Instead, he shows how the truths revealed through his ministry help explain both Israel’s failure and Israel’s future salvation.
Paul’s not preaching the Kingdom Gospel in these chapters either. He’s not proclaiming that the kingdom is at hand like John the Baptist and the 12 apostles, and Jesus Himself did. He’s explaining how Israel will ultimately enter that promised kingdom: through faith in Christ and by God’s grace.

Paul uses the mystery to illuminate God’s entire plan. As he says in 2 Timothy 2:7, understanding his message enables believers to gain understanding “in all things.”
The revelation of God’s grace helps explain not only what God’s doing today but also why He dealt with Israel as He did throughout history. His purpose has always been to show mercy after patiently enduring human failure. He was longsuffering toward Israel’s unbelief so that His mercy might be magnified. This is the same principle Peter later expresses in 2 Peter 3 when he writes that “the longsuffering of our Lord is salvation.”

When Paul so often quotes from the prophets, it’s not accidental. He constantly returns to Scripture because prophecy helps explain God’s faithfulness, Israel’s condition, and the consistent way God accomplishes salvation.
Throughout Romans 9-11, Paul’s message is clear: salvation comes by God’s promise, received through faith, granted by grace, and rooted in His mercy. These truths explain both our salvation today and Israel’s future restoration.
These quotations from the prophets don’t weaken the mystery revelation given to Paul by the risen Christ, but actually strengthen it. Paul quotes prophecy because, when his ministry began, the Old Testament Scriptures were the inspired Scriptures already available. If he claimed to be an apostle of Christ, he needed to demonstrate that what he taught was consistent with God’s revealed character and purposes.
Paul himself wrote in 2 Timothy 3:16 that “all Scripture is given by inspiration of God, and is profitable.” How could he ignore those prophetic Scriptures? While he received new revelation concerning the mystery, he wasn’t starting a new religion or presenting a different God. Unlike false religious founders who claim authority apart from Scripture, Paul always showed how his ministry fitted perfectly within Scripture and within God’s overall plan.
Quoting prophecy also authenticated Paul’s apostleship.
A true apostle of Christ would need to understand both what had previously been revealed and what had now been revealed through the mystery. This’s why Paul could stand alongside Peter and the Twelve in Galatians 2 without conflict. The revelation of the mystery did not replace prophecy; it provided understanding that helped explain God’s purposes more fully.
Believers who understand the mystery should actually understand prophecy better, not less.
The mystery reveals God’s will in a way that helps illuminate what God was doing all along. For example, when God revealed Himself to Moses in Exodus 33-34, He declared Himself to be gracious, compassionate, and merciful. Those qualities were always true of God, even before they were fully understood. Throughout history, God was teaching mankind about sin, their need for salvation, and ultimately their need for Christ.
This is one reason studying prophecy is important.
Without understanding prophecy, people can wrongly identify something as a mystery that was actually foretold. God’s incarnation, the coming of salvation, and the blessing of Gentiles were all prophesied. The mystery was something different. Therefore, knowing what prophecy said helps us correctly identify what was hidden and later revealed through Paul.
Prophecy was also essential in Paul’s ministry to Israel.
When he entered synagogues and reasoned with Jews, he used their Scriptures to prove that Jesus was the Christ.
The hundreds of fulfilled prophecies concerning Christ provide powerful evidence that Jesus is the promised Messiah and that Scripture is the Word of God.
Prophecy demonstrates God’s direct intervention in history in a way no human could accomplish.
Paul regularly referred to Abraham, David, Adam, Moses, and the prophets. Understanding these Scriptures in light of the mystery gives a deeper appreciation of God’s unfolding plan.
Learning to rightly divide Scripture transforms our understanding of books such as Psalms and the Prophets. Passages that once seemed just devotional become much richer when viewed through the light of the mystery revealed to Paul.

Therefore, when Paul quotes Hosea, Isaiah, and other prophets in Romans chapters 9-11, he’s not undermining the mystery or reverting to a kingdom message; he’s interpreting prophecy with the fullest understanding available, having received direct revelation from Christ.
Only Paul could write Romans 9-11 as they’re written because only Paul was entrusted with the revelation of the mystery that explains Israel’s present blindness, future restoration, and God’s dealings with both Jew and Gentile.
Peter wrestled with questions about the delay of the kingdom, as we see in 2 Peter 3, and he ultimately directed believers to Paul’s writings for further understanding. This highlights Paul’s unique role in explaining what happened to Israel and how God’s purposes continue to unfold.

The point is that God has always saved people by His grace, through faith, according to His promise, and not through human merit. Today we are saved through faith in Christ’s finished work on the cross. Israel’s future salvation will also come through God’s promise, faith in Christ, and divine grace. The covenants differ, and prophecy is not the mystery, but the underlying principle is unchanged: God does not save anyone by fleshly privilege, personal works, or national identity. His purpose has always been to magnify His mercy. Romans 9-11 therefore demonstrates both God’s faithfulness to Israel and His consistent way of saving sinners throughout Scripture.

In Romans 9:25-26, Paul now begins explaining why he quotes Hosea and Isaiah, and it’s a crucial point because it helps us understand both Israel’s fall and God’s mercy toward them.
Paul’s already shown repeatedly that being an Israelite by birth doesn’t guarantee receiving God’s mercy. God promised mercy to Israel, so He will never destroy them completely, but He can still judge them for unbelief.
Israel was chosen to be a channel through which God’s mercy would reach the world. Therefore, God’s mercy toward Israel was never an end in itself but part of His plan to bless all nations.
In Romans 9:25, Paul says, “As he saith also in Osee [Hosea].” By using Hosea to support his argument, Paul’s showing that Hosea was teaching the same principle. This is important because Hosea wrote long before the revelation of the mystery. Therefore, Hosea can’t be talking about the Body of Christ. He’s talking about Israel.
Throughout Romans 9, Paul’s been discussing Israel’s calling. The covenants, adoption, glory, and promises belonged to Israel. The calling mentioned throughout the chapter concerns God’s dealings with Abraham, Isaac, Jacob, and the believing remnant. When Paul quotes Hosea’s words, “I will call them my people, which were not my people,” he’s still speaking about Israel.
Many assume this verse refers directly to Gentiles because Gentiles were once outside God’s covenant people.
While Gentiles do receive mercy today, Hosea’s original prophecy concerned Israel itself. Israel was God’s people, then because of unbelief was treated as “not my people,” and later would be restored and called God’s people again. That’s the message of Hosea.
This same misunderstanding occurs in 1 Peter 2:9-10, where Peter also quotes Hosea.
Peter speaks to the remnant of Israel, describing those who “had not obtained mercy, but now have obtained mercy.”
While the language is wonderfully true of believers today, Peter is speaking about Israel’s prophetic program, not the Body of Christ. To place ourselves directly into that passage would be to place ourselves under Israel’s covenantal position rather than appreciating the distinct riches of God’s grace revealed through Paul’s ministry.

The key to understanding Hosea is remembering the story itself.
God commanded Hosea to marry Gomer, a wife who pictured Israel’s unfaithfulness. Her children were given prophetic names. Jezreel signified coming judgment. Lo-Ruhamah meant “no mercy.” Lo-Ammi meant “not my people.” These names symbolised Israel’s condition because they’d departed from the Lord.
Yet Hosea’s message didn’t end with judgment.
In Hosea 2:23, God promised,
“I will have mercy upon her that had not obtained mercy; and I will say to them which were not my people, Thou art my people.”
The judgments symbolised by the children’s names would one day be reversed. Israel would receive mercy again and once again be recognised as God’s people.
This fits perfectly with Paul’s argument in Romans 9.
He’s been explaining that God can harden Israel because of unbelief and later show mercy according to His promise. Hosea provides one of the clearest Old Testament examples of both God’s severity and His mercy toward Israel. God openly declared, “You are not my people,” yet later promised restoration by grace.

The opening of Hosea establishes this theme. Israel had departed from the Lord like an unfaithful wife departing from her husband in Hosea 1:2. Under the covenant, God had every right to judge them, yet instead of immediately destroying them, He was longsuffering and sent Hosea to call them to repentance. The wife in Hosea represents Israel, and her children represent the children of Israel.
So, when Paul quotes Hosea in Romans 9, he’s not revealing the mystery or identifying the Church as Israel; he’s using Israel’s own Scriptures to prove that God had already foretold both Israel’s temporary rejection and their future restoration through mercy. This perfectly supports Paul’s larger argument that God’s Word has not failed. Israel’s fall, judgment, and future restoration were all anticipated in prophecy, and God’s mercy remains the key to understanding them.
The quotation from Hosea demonstrates that God’s dealings with Israel have always involved both judgment and mercy.
Being an Israelite by birth did not guarantee God’s favour. Israel possessed promises, but those promises didn’t prevent God from judging unbelief. They were chosen as a channel through which God’s mercy would reach the world, and their history is a lesson about both God’s holiness and His grace.
God’s judgment is never the end of the story. Hosea 1:10 promises Yet the number of the children of Israel shall be as the sand of the sea, which cannot be measured nor numbered; and it shall come to pass, that in the place where it was said unto them, Ye are not my people, there it shall be said unto them, Ye are the sons of the living God.
God’s mercy follows His judgment because He’s both faithful to His promises and rich in mercy.

This is the background of Romans 9:25-26.
Paul is not introducing the mystery Body of Christ into Hosea. Hosea is speaking about Israel. The people who were called “not my people” were Israel, and the people restored as “my people” are Israel as well. Paul’s point is that Israel can fall under God’s judgment and later be restored by God’s mercy.
The same truth appears in Hosea 2:23: “I will have mercy upon her that had not obtained mercy; and I will say to them which were not my people, Thou art my people.” The names Lo-Ruhamah and Lo-Ammi are reversed. What judgment took away, mercy restores.
This perfectly supports Paul’s explanation in Romans 9 that God’s Word has not failed. Israel’s temporary rejection and future restoration were both foretold.

Paul also alludes to Hosea 3, where Hosea is commanded to love again the adulterous woman who represents Israel.
Though she’d departed, God’s love toward Israel remained. Hosea 3:5 promises that afterwards “the children of Israel shall return, and seek the Lord their God.” Once again, judgment is followed by mercy and restoration.

Many people misunderstand both Romans 9 and 1 Peter 2 by removing the passages from their context.
Peter’s quotation of Hosea (1 Peter 2:9-10) is addressed to the believing remnant of Israel, not to the Body of Christ. Peter describes them as a “holy priesthood” and a “chosen generation,” language drawn directly from Israel’s covenant position.
While believers today can appreciate the truth of God’s mercy, the original context remains Israel’s prophetic program.

Paul’s main teaching throughout Romans 9-11 is that not all Israel is presently God’s people in the covenant sense, yet God hasn’t abandoned His promises, and Hosea becomes one of the strongest Old Testament witnesses to Paul’s message.
God judged Israel because of their sin, withheld mercy because of their rebellion, and yet promised future restoration because of His faithfulness.
The same God who hardened in judgment also promised mercy. As Romans 9 teaches, God’s purpose has always been to magnify His mercy while remaining faithful to His truth and His promises.

In 1 Peter 2, Peter writes to Jewish believers who accepted Jesus as the Messiah.
He describes them as a “holy priesthood” and a “chosen generation” in 1 Peter 2:5, 9. In contrast, unbelieving Israel rejected Christ, the “stone which the builders disallowed” that Peter describes in 1 Peter 2:7. Peter’s point is the same as Paul’s in Romans 9: not every Israelite receives the promises simply by physical birth. The difference is faith.
Peter’s teaching is the same as Jesus in Matthew 21:42-45. Jesus told the unbelieving leaders of Israel that the rejected stone would become the chief cornerstone and that the kingdom would be taken from them and given to a nation bringing forth its fruits. The Pharisees understood He was speaking about them. Though they were Israel according to the flesh, they would miss the blessing because they refused to believe. The believing remnant alone would inherit what God promised.

In Romans 9:26, Paul continues quoting Hosea 1:10:
“It shall come to pass, that in the place where it was said unto them, Ye are not my people; there shall they be called the children of the living God.”
That “place” is Israel, because Hosea originally spoke these words to Israel while they were still in the land. God was not speaking to Gentiles when He said, “Ye are not my people.” He was speaking to His covenant nation after they’d broken the covenant. The Gentiles were never in that covenant position to begin with.
This is confirmed by Hosea 1:11, which immediately follows:
“Then shall the children of Judah and the children of Israel be gathered together.”

The people restored in Hosea are plainly Israel and Judah.
Therefore, the context of Hosea, Romans 9, and 1 Peter 2 remains Israel’s prophetic program, not the mystery Body of Christ.
As we’ve already said many times, many errors of doctrine occur when verses are removed from their setting and made to teach something they were never intended to teach.
While there are similarities between God’s mercy toward Israel and His grace toward believers today, similarity doesn’t wipe out dispensational differences.
Hosea beautifully illustrates the pattern Paul is explaining.
In the same place where God said, “You are not my people,” He later promises, “You are the sons of the living God.”
First comes judgment and hardness; then comes mercy and restoration. Hosea shows both vessels of wrath and vessels of mercy within God’s dealings with Israel. He records Israel’s unbelief, fall, judgment, and future return.

Paul’s quoting of Hosea also connects with a major theme already established earlier in Romans 9. Those who become “the children of the living God” are not merely children of the flesh, but children according to God’s promise, as we saw in Romans 9:8.
Understanding salvation by promise rather than flesh helps explain both individual examples such as Jacob and Esau and the future restoration of Israel as a nation.
Paul then introduces another witness in Romans 9:27:
“Esaias also crieth concerning Israel…”

` Isaiah’s speaking about Israel as well. Paul is gathering multiple prophetic witnesses to prove the same point: not all Israel receives the promised blessings simply because they are Israelites. God’s promises are fulfilled through His mercy, according to His purpose, and received by faith.

Isaiah 10:20-22 introduces the next critical theme:

“The remnant of Israel.”

Just as Hosea spoke of restored Israel, Isaiah speaks of a surviving remnant. Paul uses these prophecies to support what he stated earlier in Romans 9: “They are not all Israel, which are of Israel.” The prophets themselves taught that only a believing remnant would receive the promised glory.

The writer concludes with a personal observation about the value of studying the prophets. Difficult passages become much clearer when read in light of rightly divided Scripture. Careful study of books like Isaiah and Hosea reveals that Paul is not inventing a new doctrine in Romans 9. Rather, he is showing that Israel’s present condition and future restoration are exactly what the prophets foretold. Through Hosea and Isaiah alike, the message remains the same: God’s judgment on unbelief is real, but His mercy toward the believing remnant is even greater.

Continuing Paul’s argument from Hosea, he now turns to Isaiah 10 to prove the same point: not all Israel receives God’s promises simply because they are Israelites by birth. Just as Hosea showed God’s judgment and mercy within Israel, Isaiah shows that only a remnant of Israel receives the promised salvation.

Isaiah 10:20 says that in a future day “the remnant of Israel” and those who escape will no longer trust in those who oppressed them but will return to the Lord, the Holy One of Israel, in truth. This is a future turning of Israel back to God. Not all Israel does this, only a remnant. The rest experience God’s judgment. As Paul has been teaching throughout Romans 9, some receive hardness while others receive mercy.

Isaiah repeats this in verse 21: “The remnant shall return.” The very idea of a remnant means not everyone returns. Some are judged, while some receive mercy. This is an important distinction from the Body of Christ. There is no remnant within the Body of Christ. Every member of Christ’s body is saved. But in Israel’s prophetic program, Scripture consistently speaks of a believing remnant preserved through judgment.

This is why Paul quotes Isaiah 10:22 in Romans 9:27:

“Though the number of the children of Israel be as the sand of the sea, a remnant shall be saved.”

Isaiah says a remnant shall return; Paul says a remnant shall be saved. These are not contradictory ideas. For Israel, their future salvation is connected with their restoration and return according to God’s covenant promises. Paul is helping his readers understand what Isaiah was describing. God’s promise to Abraham that Israel would be as the sand of the sea remains true, yet only a remnant experiences the promised deliverance after judgment.

The writer notes that Paul does not always quote the Old Testament word-for-word. This should not trouble believers. Under inspiration, Paul often explains or summarizes prophetic passages to highlight their meaning. In this case, “return” and “saved” help interpret one another, revealing that Israel’s future return is inseparably connected to God’s saving work on their behalf.

Paul continues in Romans 9:28:

“For he will finish the work, and cut it short in righteousness.”

This comes from Isaiah 10:22-23, where Isaiah speaks of a “consumption decreed” overflowing with righteousness. In Isaiah’s context, this consumption refers to God’s covenant judgment upon Israel. The same language appears in Leviticus 26:16 and Deuteronomy 28:22, where God warned Israel that covenant disobedience would bring consuming judgment.

Isaiah therefore describes two realities occurring together. First, God’s judgment must come because He is faithful to His word and cannot ignore sin. Second, God’s mercy must also come because He promised to preserve and restore His people. Judgment is certain, but judgment is not the end of the story.

Paul highlights this aspect of mercy. Isaiah emphasizes the coming consumption; Paul emphasizes that God will “finish the work” and preserve a remnant. The judgment is real, but it is cut short because God intends to save those to whom He promised mercy.

This perfectly fits Paul’s larger argument in Romans 9. Israel’s present unbelief does not mean God’s Word has failed. The prophets repeatedly taught that Israel would experience hardness, judgment, and scattering before mercy, restoration, and salvation. Hosea showed Israel becoming “not my people” before being restored. Isaiah shows a vast nation reduced to a believing remnant that returns to God.

The writer’s central insight remains consistent throughout Romans 9: God’s dealings with Israel reveal both His severity and His mercy. He judges unbelief, yet preserves a remnant according to promise. He hardens, yet He also saves. The remnant exists because God remains faithful to His covenant promises and desires to magnify His mercy. Thus Paul’s use of Isaiah confirms what Hosea already taught: not all Israel receives the blessing, but God’s promise will stand through the remnant who return to Him in faith.

Continuing Paul’s argument from Hosea and Isaiah, Romans 9:28-29 shows that God’s judgment upon Israel is always balanced by His faithfulness to preserve a believing remnant. The issue is not whether God will judge Israel. The prophets repeatedly said He would. The issue is whether His judgment would completely destroy them. The answer is no, because of His promises and mercy.

Jesus taught the same principle in Mark 13:19-20. Speaking of the future tribulation, He said there would be unprecedented affliction, but that the days would be shortened for the elect’s sake. God’s judgment would come, yet it would not continue to total destruction because He had chosen to preserve a remnant of believing Israel. This is exactly what Paul is highlighting in Romans 9. Israel experiences hardness and judgment, but God will not utterly destroy His people. He preserves a seed according to promise.

This connects directly to Isaiah 10, where Paul quoted that although Israel would become as numerous as the sand of the sea, only a remnant would return and be saved. Judgment falls on the nation, but mercy preserves those who believe. God’s promises to Abraham remain secure, yet not every Israelite automatically receives the promised blessings.

Paul then quotes Isaiah 1:9:

“Except the Lord of Sabaoth had left us a seed, we had been as Sodoma, and been made like unto Gomorrha.”

The context is again Israel. Isaiah warned that because of Israel’s sins and covenant-breaking, judgment was coming upon the land. Yet even before that judgment arrived, God promised to preserve a “seed” or remnant. Without that mercy, Israel would have been completely destroyed like Sodom and Gomorrah.

The title “Lord of Sabaoth” means the Lord of Hosts, or the Lord of armies. Isaiah presents God as the righteous Judge who comes in power to make war against sin and rebellion. Yet even while announcing judgment, He promises preservation. The same God who judges also preserves a remnant because He remains faithful to His covenant promises.

This becomes Paul’s appeal to his fellow Jews. He is not simply explaining prophecy; he is urging unbelieving Israelites to become part of the believing remnant. The prophets showed that God would save a seed. The question for Israel was whether they would remain in unbelief or receive God’s mercy.

The writer emphasizes that Israel’s current fall does not prove God’s Word has failed. Throughout Israel’s history the same pattern appears repeatedly: unbelief, judgment, mercy, restoration. Hosea showed Israel becoming “not my people” before being restored. Isaiah showed a nation under judgment with only a remnant surviving. Paul sees the same pattern in his own day.

Even Sodom and Gomorrah illustrate God’s mercy. Before judgment fell, God extended opportunities for repentance. Abraham pleaded for mercy, and God was willing to spare the city for the sake of a small number of righteous people. This demonstrates that God’s desire is not judgment but mercy whenever possible.

Jesus applied this lesson to Israel in Matthew 11:23-24. He declared that if the miracles performed in Capernaum had been done in Sodom, it might have remained. Therefore unbelieving Israel faced greater accountability because they rejected the very One who came offering God’s mercy.

The central lesson of Romans 9:25-29 comes into focus: every prophecy Paul cites contains both judgment and hope. Hosea, Isaiah, and even the teaching of Jesus all point to the same reality. Israel’s unbelief brings hardness and judgment, but God preserves a remnant according to grace. The hope is never found in national identity, fleshly descent, or human merit. The hope is found in God’s mercy toward those who believe.

Paul’s burden throughout Romans 9-11 is therefore both doctrinal and personal. He wants Israel to understand that their present condition is not contrary to Scripture. The prophets foretold it. Yet he also wants them to see that mercy remains available. As long as the Lord has not yet returned in judgment, unbelieving Israelites can still receive God’s grace and become part of that promised remnant.

Thus the repeated message of Hosea, Isaiah, Jesus, and Paul is the same: God judges unbelief, but He delights in showing mercy. The remnant survives because of God’s faithfulness, and His promises stand secure even when much of Israel remains in unbelief.