Not One Word Will Fail

Introduction

Last time, as we considered Matthew 5:17, we heard our Lord reject a dangerous misunderstanding before it could take root: “Do not think that I came to abolish the Law or the Prophets; I did not come to abolish but to fulfill.” Jesus did not enter history as an enemy of Moses, a rival to the prophets, or a religious revolutionary determined to sweep away everything God had previously spoken. He came as the promised King to whom the Law and the Prophets pointed. He fulfilled their prophecies, embodied their types, obeyed their moral demands, bore their curse, and revealed their true spiritual depth.

We also saw that Christ fulfills the moral, ceremonial, and judicial dimensions of the law without treating any portion of God’s revelation as useless. The ceremonial shadows reach their substance in Him. The judicial laws given to Israel as a nation expire with that covenantal order, while their general equity continues to instruct us. The moral law remains the holy expression of God’s character and the enduring rule of righteousness, though the believer is no longer under it as a covenant of works or a sentence of condemnation.

Verse 18 now explains why Christ could never abolish the Law and the Prophets. God’s Word cannot be dismantled because God’s Word cannot fail. Verse 17 tells us Christ’s relationship to Scripture: He fulfills it. Verse 18 tells us Scripture’s relationship to history: every part of it stands until everything God has purposed is accomplished. This verse grounds the entire discussion in the unchanging truthfulness of God.

Our Lord declares, “For truly I say to you, until heaven and earth pass away, not the smallest letter or stroke shall pass from the Law until all is accomplished.” In one sentence, Jesus gives us a doctrine of Scripture, a doctrine of God, a doctrine of Christ, and a doctrine of history. The Word is authoritative because God has spoken it. It is precise because God does not speak carelessly. It is permanent because God does not change. It is certain because Christ brings every divine purpose to completion.

Text

Please stand for the reading of God’s holy, inerrant, infallible, sufficient, authoritative, complete and certain word:

Matthew 5:17–20 LSB

“Do not think that I came to abolish the Law or the Prophets; I did not come to abolish but to fulfill. “For truly I say to you, until heaven and earth pass away, not the smallest letter or stroke shall pass from the Law until all is accomplished. “Whoever then annuls one of the least of these commandments, and teaches others to do the same, shall be called least in the kingdom of heaven; but whoever does and teaches them, he shall be called great in the kingdom of heaven. “For I say to you that unless your righteousness surpasses that of the scribes and Pharisees, you will not enter the kingdom of heaven.

Our Father in heaven, we thank You for Your Word. You have spoken, and not one word You have spoken can fail. Open our minds now to understand the Scriptures and humble our hearts beneath their authority. Guard us from approaching Your truth as judges, selecting what we will receive and rejecting what confronts us. Teach us instead to listen as servants before their Master and as children before their Father.

Show us the glory of Christ, who did not abolish the Law and the Prophets but fulfilled them perfectly. Reveal the seriousness of our sin, the perfection of Your righteousness, and the sufficiency of the Savior who obeyed in the place of His people and bore their curse upon the cross. By Your Spirit, grant us faith to believe, humility to repent, and grace to obey. Sanctify us by the truth; Your Word is truth. We ask this in Jesus’ name. Amen.

The King Speaks with Absolute Authority

Jesus begins, “For truly I say to you.” The word translated “truly” is the familiar word amen. We commonly say “amen” after a prayer or declaration, affirming what has already been said. Jesus places it at the beginning. He does not appeal to another rabbi, weigh competing opinions, or search for a higher authority. He speaks with His own royal and divine authority: “Truly I say to you.”

The prophets often announced, “Thus says Yahweh,” because their authority was derived. They were messengers entrusted with the Word of Another. Jesus certainly speaks the Father’s words and does the Father’s will, yet He also speaks as the eternal Son who possesses authority in Himself. Later in this sermon He will repeatedly say, “But I say to you.” At the end of Matthew 7, the crowds are astonished because He teaches as one having authority, not as their scribes. Here the King solemnly guarantees the certainty of Scripture by His own word.

This is not a minor detail. Our confidence in the Bible is inseparable from our confession of Christ. A person cannot consistently honor Jesus while dismissing the Scriptures Jesus honored. He received the Old Testament as the Word of God, appealed to it in temptation, used it to expose error, declared that it cannot be broken, and submitted Himself to its appointed course. John 10:35 records His plain assertion, “Scripture cannot be broken.” Matthew 24:35 adds His promise, “Heaven and earth will pass away, but My words will not pass away.”

John MacArthur makes the point directly: “Every type will be fulfilled; every prophecy will be realized; every law will be verified” (John MacArthur, “Christ and the Law, Part 2,” sermon on Matthew 5:18, February 25, 1979). The authority of Scripture is not an artificial doctrine later imposed upon Christianity. It is the view of Scripture given by Christ Himself.

Therefore, when Scripture confronts us, God is not asking us to vote on its acceptability. He is not inviting us to revise His standards according to our preferences. The question is never whether God’s Word agrees with us; the question is whether we will bow before God’s Word. Christ does not stand beneath the judgment of modern culture. Modern culture stands beneath the judgment of Christ.

God’s Word Outlasts the Present Creation

Jesus continues, “until heaven and earth pass away.” Heaven and earth are the most stable realities known to man. Generations rise and fall beneath the same sky. Kingdoms appear and vanish while the earth remains. Mountains outlive rulers, monuments, and civilizations. Yet Jesus says that the created order is less enduring than the truth God has spoken.

Psalm 102 contrasts creation with the Creator. The heavens are the work of His hands; they will perish, but He remains. Isaiah 51:6 says that the heavens will vanish like smoke and the earth will wear out like a garment, but God’s salvation will be forever and His righteousness will not be broken. Second Peter 3 looks ahead to the day when the present heavens and earth will be dissolved and replaced by new heavens and a new earth in which righteousness dwells.

Creation is stable because God upholds it, but Scripture is certain because it expresses the will of the God who upholds creation. The universe is not self-existent. God’s truth reflects His own eternal, immutable character. Numbers 23:19 asks, “Has He said, and will He not do it? Or has He spoken, and will He not establish it?” Isaiah 40:8 declares, “The grass withers, the flower fades, but the word of our God stands forever.”

John Calvin explains that Christ teaches “the truth of the law and of every part of it, is secure” (John Calvin, Commentary on a Harmony of the Evangelists, Matthew, Mark, and Luke, vol. 1, trans. William Pringle, comment on Matthew 5:18). Calvin then argues that nothing in the created order is as durable as God’s revealed truth.

This gives the church great stability in an unstable age. Human opinions change quickly. What one generation praises, another condemns. Moral boundaries are moved, words are redefined, and convictions once considered obvious are treated as shameful. Yet the church is not called to chase the age. We are called to stand upon the Word that will remain when the age itself has passed away.

The church does not preserve Scripture by making it acceptable to unbelief. Scripture preserves the church by continually correcting, cleansing, feeding, and governing her. The grass withers. The flower fades. Philosophies lose their influence. Nations lose their power. Heaven and earth will pass away. But not one promise, warning, command, prophecy, or gospel declaration from God will prove false.

That permanence should also comfort the suffering believer. God’s promises are not fragile. His covenant mercy does not weaken when circumstances become severe. When your feelings accuse you, when providence confuses you, and when the world appears to be spinning beyond control, God’s Word remains fixed. The same God who said, “I will never desert you, nor will I ever forsake you,” governs every event and cannot deny Himself.

Every Detail of God’s Word Is Certain

Jesus moves from the vastness of heaven and earth to the smallest details of written language: “not the smallest letter or stroke shall pass from the Law.” The smallest letter refers to the Hebrew yod, a tiny character. The “stroke” refers to a small mark that distinguishes one letter from another. Our Lord’s point is unmistakable: God’s truth is reliable not merely in broad themes but in its written details.

Jesus does not say that the general religious feeling of Scripture will survive while particular words may be discarded. He does not affirm inspiration in a vague sense while leaving room to dismiss whatever embarrasses the reader. His confidence extends to the smallest letter and the least stroke because the God who inspired Scripture attended to the words by which His truth was communicated.

This agrees with 2 Timothy 3:16: “All Scripture is God-breathed.” Peter says that men spoke from God as they were carried along by the Holy Spirit. David says in 2 Samuel 23 that the Spirit of Yahweh spoke by him and God’s word was on his tongue. Paul’s argument in Galatians 3:16 depends upon a singular noun. Jesus’ argument in Matthew 22:32 depends upon the tense of a verb: “I am the God of Abraham.” The biblical writers do not treat the wording of Scripture as accidental.

Charles Spurgeon declared, “The law of God must be perpetual. There is no abrogation of it, nor amendment of it.” Christ does not adapt the holiness of God to the fallen condition of man. He exposes the true depth of that holiness and then fulfills its demands on behalf of His people. —Charles H. Spurgeon, “The Perpetuity of the Law of God,” Metropolitan Tabernacle Pulpit, vol. 28, sermon on Matthew 5:18, preached May 21, 1882.

That warning is necessary because sinners rarely begin by rejecting the whole Bible at once. They begin by setting aside the portion that presses hardest against a cherished sin. One command is called outdated. One doctrine is judged unloving. One account is treated as an embarrassment. One uncomfortable truth is reinterpreted until it no longer confronts anyone.

But the authority of a command does not rest upon our estimate of its importance. Matthew Henry writes that God’s care extends even to matters that appear smallest because everything bearing God’s stamp must be preserved (Matthew Henry, Commentary on the Whole Bible, comments on Matthew 5:18). The smallest word from God carries greater authority than the loudest consensus of man.

This does not mean every command is applied without regard to covenantal context. We do not return to animal sacrifices, dietary restrictions, or Israel’s national penalties as though Christ had not come. The New Testament itself teaches us how those portions are fulfilled. Hebrews tells us the sacrifices were shadows and Christ is the once-for-all offering. Colossians says the food laws and festival days were shadows, while the substance belongs to Christ. The cessation of a shadow at the arrival of its substance is not the failure of Scripture; it is Scripture’s success.

The Second London Baptist Confession explains that ceremonial laws were appointed as types of Christ and were abrogated when their purpose was fulfilled; Israel’s judicial laws expired with that nation, except for their general equity; and the moral law continues to bind all people. It adds, “Nor does Christ in any way dissolve this obligation in the Gospel; instead He greatly strengthens it” (Second London Baptist Confession of Faith, 1689, 19.3–5).

Therefore, faithful interpretation does not flatten the Bible, but neither does it fragment the Bible. We read every text in its grammatical, historical, covenantal, and canonical setting. We ask how it functioned when given, how it relates to Christ, and how the New Testament applies it. Yet through every necessary distinction, we confess that not one part was mistaken, wasted, or allowed to fall helplessly to the ground.

All God Has Spoken Will Be Accomplished

The verse ends, “until all is accomplished.” The word points to events coming to pass. Nothing in Scripture disappears through neglect. It remains until it reaches the end God appointed for it. Prophecies are fulfilled. Types find their substance. Promises receive their “yes” in Christ. Threats are vindicated. Righteous requirements are satisfied. History moves toward the conclusion God has written.

A. W. Pink summarized the breadth of this fulfillment by saying that the law’s “prefigurations and prophecies,” as well as its “precepts and penalty,” must be fulfilled (A. W. Pink, An Exposition of the Sermon on the Mount, “Christ and the Law: Matthew 5:17–20”). That fulfillment is centered in Jesus Christ.

The law’s precepts were fulfilled in His perfect obedience. From birth to death He loved God with all His heart, soul, mind, and strength, and loved His neighbor without defect. Romans 5:19 says that through the obedience of the One, the many will be appointed righteous. He is the faithful Israelite, the last Adam, the righteous Servant, and the beloved Son in whom the Father is well pleased.

The law’s penalty was fulfilled at the cross. Galatians 3:13 declares that Christ redeemed us from the curse of the law by becoming a curse for us. God did not save sinners by pretending the law had never been broken. He saved them by sending His Son to bear its judgment. At Calvary, mercy did not overthrow justice. Mercy satisfied justice through a substitute.

The law’s types were fulfilled in His person and work. He is the true Passover Lamb, the final Priest, the better sacrifice, the true temple, the bread from heaven, and the once-for-all atonement. Hebrews 10 says the law possessed a shadow of the good things to come, but Christ came to do God’s will and perfect His people by one offering.

The prophetic promises are fulfilled in Him. The seed of the woman, the son of Abraham, the son of David, the Servant of Yahweh, and the ruler from Bethlehem are not disconnected hopes. They converge upon Jesus. Second Corinthians 1:20 says that all the promises of God are “Yes” in Him.

Yet the words “until all is accomplished” also direct us toward the future. Christ has come, died, risen, and ascended, but He will come again. Every promise concerning His return, judgment, resurrection, and kingdom will be fulfilled. Revelation ends not with history wandering into uncertainty, but with a new heaven and new earth, the curse removed, God dwelling with His people, and the servants of the Lamb seeing His face.

This means history is not ultimately governed by rulers, markets, wars, elections, or technological powers. God’s Word governs history. Men may rage against it, but they cannot prevent it. Pharaoh could not nullify the promise. Babylon could not erase the covenant. Herod could not kill the King. The grave could not hold the Son. The nations cannot stop His return. All will be accomplished.

Conclusion

Matthew 5:18 brings us back to the great certainty upon which this entire passage rests: God has spoken, and nothing He has spoken will fail. Heaven and earth appear fixed and permanent to us, yet Christ says that the present creation will pass away before the smallest letter or stroke of God’s Word can fall to the ground. Every promise will be kept. Every prophecy will be fulfilled. Every warning will be vindicated. Every righteous judgment will be shown to be true. Every purpose revealed in Scripture will reach the end appointed for it by God.

Matthew Henry expressed it plainly: “The word of the Lord endures for ever, both that of the law, and that of the gospel.” —Matthew Henry, Commentary on the Whole Bible, vol. 5, comments on Matthew 5:18.

That truth should produce both trembling and confidence. It should make the unrepentant sinner tremble because God’s standard will not be lowered, His judgment will not be cancelled, and His warnings will not expire with the passing of time. No sinner will escape by arguing that the commandment was too demanding, that the culture had changed, or that personal sincerity should have been enough. Not one jot or tittle will pass until all is accomplished.

Yet this same truth gives great confidence to everyone who has fled to Christ. The permanence of God’s Word means that the promise of salvation is as certain as the warning of judgment. The God who says that the soul who sins will die is the same God who says that everyone who believes in His Son has eternal life. The gospel does not save us by erasing the law or pretending that its demands were unimportant. The gospel announces that Jesus Christ has fulfilled what His people failed to fulfill and has endured the curse their disobedience deserved.

The law’s permanence, therefore, drives us away from confidence in ourselves and toward confidence in Christ. We cannot revise the standard. We cannot repair our record. We cannot produce the righteousness God requires. But Christ has obeyed where we disobeyed, suffered where we deserved to suffer, and risen in victory over the judgment He bore. Those who are united to Him by faith are justified by His righteousness and renewed by His Spirit to walk in grateful obedience.

So how do you receive the Word of God? Do you come to it as a disciple ready to be instructed, or as an editor searching for something to remove? When Scripture confronts a cherished sin, do you repent, or do you search for a way to weaken what God has said? When its promises seem contrary to your circumstances, do you trust the God who spoke them? Are your conscience, your home, your worship, your relationships, and your ambitions being brought beneath the authority of this enduring Word?

And most importantly, have you come to the Christ in whom every purpose of God finds its fulfillment? Outside of Him, the unchanging Word condemns you. In Him, that same Word assures you that there is now no condemnation for those who belong to Christ Jesus.

Heaven and earth will pass away, but not one word from God will fail. Since His Word cannot be broken, will you continue trying to resist it, revise it, or escape it—or will you bow before the King who fulfilled it and entrust yourself entirely to Him?

Closing Prayer

Our gracious and unchanging God, we praise You because Your Word stands forever. Heaven and earth will pass away, but not the smallest letter or stroke of what You have spoken will fall to the ground. Forgive us for the times we have treated Your commands lightly, doubted Your promises, ignored Your warnings, or attempted to reshape Scripture according to our own desires.

Thank You for sending Your Son, Jesus Christ, who fulfilled every righteous demand, bore the curse deserved by sinners, and accomplished the salvation promised throughout Your Word. Drive us away from every confidence in ourselves and teach us to rest entirely in His obedience, His sacrifice, and His resurrection.

Give us hearts that tremble at Your Word and yet find comfort in it. Help us to bring our thoughts, homes, worship, relationships, and ambitions beneath its authority. Strengthen those who are discouraged by reminding them that every promise of grace is secure. Awaken those who remain unrepentant before the appointed day of judgment comes.

Cause us not merely to hear Your Word but to receive it, believe it, and walk in grateful obedience. Keep our eyes fixed upon Christ until every remaining promise is fulfilled and faith becomes sight. We pray in His glorious name. Amen.