Psalms 89:35

Once have I sworn by my holiness that I will not lie unto David.

God bound Himself by a single solemn oath on His own holiness never to deceive David or break His word, making the promise absolutely certain, truthful and unalterable. The oath pledged that David's seed and throne would be built up and established forever, enduring as the days of heaven and as the sun and moon before Him. Though David's earthly kingdom was overthrown and his immediate sons failed, bringing chastisement with the rod and stripes for forsaking God's law, that discipline fell on the disobedient alone and could not break the covenant or take away His lovingkindness. The unfailing heir is Jesus Christ, David's son and descendant, in whom the house, kingdom and throne are secured forever and who will reign on David's throne over the restored earth when His priesthood ends. Therefore the oath gives full assurance of God's faithfulness and of redemption through Christ to true Israel, while those who would have part in the kingdom must keep God's commandments spoken at Sinai, which remain unchanged as the law of Christ's eternal kingdom.

Oath Wording and Context

Once God swore by His own holiness that He will not lie to David, solemnly binding Himself by that holiness to keep His word without falsehood. That single oath makes the covenant and promise to David and his house positive, certain, truthful, sure and unbreakable. It guarantees that David's seed shall endure forever and his throne shall be built up to all generations, established forever as the sun before God and as the moon and faithful witness in heaven, enduring as the days of heaven. The rejection of unbelieving nominal Israel does not and cannot destroy this promise, even though Israel's earthly kingdom was later overthrown and never restored.

Not lying means not deceiving David, not breaking promise to him, and not being false to him. What God promised will not be altered, His covenant faithfulness will endure, He will not take His lovingkindness from him, suffer His faithfulness to fail, or break His covenant. His acts and words are final and not experiments, though their fulfillment need not be unconditional. The assurance that God does not alter what He has spoken also applies to the Sabbath, with God's rest at creation remaining a lasting memorial of His work and an emblem of spiritual rest.

The verse belongs to the promises and covenant oath to David and his house concerning the coming of the promised Seed and Messiah, and to God's oath concerning His covenant with David and his descendants. It does not belong to the covenant with Abraham, the covenant at Sinai, or the Ten Commandments, and the words refer primarily to a promise spoken to or through David, possibly through the prophet Nathan. Psalm 89 is a prophecy about David and his greater Son Jesus Christ, described as a prophecy of Christ and His glorious reign and as part of the Bible's treasure of comfort and consolation for God's children. It is David's prophetic song of deliverance, fittingly connected with the triumph of Christ's resurrection.

Enduring Seed and Throne

God bound Himself by His own holiness to keep His word to David without falsehood or deception, making the covenant with David and his house positive, certain, sure and unbreakable. That oath guarantees that David's seed shall endure forever and his throne shall be built up to all generations and established forever. It shall endure as the days of heaven, as the sun before God, and established forever as the moon and as a faithful witness in heaven. The promise refers ultimately to Christ and His everlasting kingdom, not merely to Solomon or the temporary kingdom of Israel. The rejection of unbelieving nominal Israel does not and cannot destroy this promise, which is literally fulfilled to true Israel, the faithful overcomers, and its truths are eminently practical.

The crown remains with David and his house by that unbreakable covenant. David's throne was appointed for the promised Seed, Christ, and would endure through eternal ages. That throne is established as the throne of the restored earth, which Jesus, the Son of David and second Adam, inherits and will reign from forever.

Israel's earthly kingdom was later overthrown and never restored, even though the oath belonged to the promise that David's seed and throne would endure forever. The immediate descendants of David failed to keep their privilege, but God's promise remained and pointed to the rightful ruler, Christ, whose kingdom will be everlasting. Since David was not the firstborn and his throne no longer exists, the language of an enduring seed and throne points beyond David himself to Christ, the Son of David.

Discipline and Conditional Aspects

The oath to David carries a condition of obedience for his children and for Israel as subjects of the kingdom. If they forsake God's law, walk not in His judgments, break His statutes and keep not His commandments, they will be visited with the rod and with stripes. That visitation means chastisement and temporary subversion of the kingdom.

The punishment falls on the disobedient alone and cannot invalidate the promise made to David himself. Despite Israel's disobedience and failures, God will not take His lovingkindness from him, suffer His faithfulness to fail, break His covenant, or alter what He has spoken. He will still perform what He swore and establish David's throne forever.

The kingdom promises to Jacob's descendants were conditional and were forfeited under the old covenant. Those conditional promises hold good only as long as His people walk in His way and trust Him. Their fulfillment need not be unconditional, for His acts and words are final and not experiments yet their fulfillment need not be unconditional. When His people are determined to walk in their own way, God must permit them to have their own way, and the promises cannot in the very nature of the case be fulfilled because they have put themselves where it is impossible for Him to fulfill them.

The kingdom can now be obtained only through an interest in Jesus, David's son and heir, now Prince and soon to be crowned King. The condition joined to the oath belongs to the subjects of the kingdom, David's children and Israel gathered from fallen men. They must keep God's law, judgments, statutes and commandments to secure an interest in the kingdom, which keeping is the fruit required for entrance into the kingdom of heaven.

Fulfillment in Jesus Christ

The oath belongs to the promise of an enduring seed and throne, and points beyond David himself, since David was not the firstborn and his throne no longer exists. It refers ultimately to Christ and His everlasting kingdom, not merely to Solomon or the temporary kingdom of Israel. The immediate descendants of David failed to keep their privilege, but the promise remained and pointed to the rightful ruler, Christ, whose kingdom will be everlasting. The Messiah was to descend from David, and Jesus is David's descendant. The certainty rests on Christ as David's son and heir, in whom there can be no failure, while the condition joined to the oath belongs to the subjects of the kingdom, David's children and Israel gathered from fallen men, who must keep God's law, judgments, statutes and commandments to secure an interest in the kingdom.

Christ, the Son of David, reigns on David's throne throughout eternity, and this prophecy remains in fulfillment as long as the sun and moon endure. He is destined to reign as King on David's throne in God's kingdom on earth. The throne of David is the throne of the restored earth, which Jesus, the Son of David and second Adam, inherits and will reign from forever. His own kingdom and reign will have no end. David's throne and kingdom belong to the Lord, and Christ will take that throne as ruler of the earth after His priesthood ends.

The sworn guarantee secures the continuance of the kingdom, because in Christ's continuance as the seed is bound up the continuance of the kingdom, and in Him as the seed the kingdom and the house of David are established forever. The stability and enduring continuance of the kingdom rests on the everlasting righteousness provided in Christ and received through justification by faith. Joined to the promise concerning David's throne is a promise concerning David's seed, in which the coming of one person was bound up for a purpose that secures victory for humanity.

The enduring house means that a Saviour would come in human flesh to save people from sin and give humanity victory over death and the grave. The enduring house is grounded in righteousness by faith, and its fulfillment is Christ, the Son of God who became the Son of man and occupies David's throne. Those who build on Christ share in the promise as members of God's spiritual house, where God's law is written and Christ's presence pledges its eternal continuance. David as God's anointed king is a type of Jesus, the coming King of kings. The promise to David of a firstborn son and an everlasting kingdom is fulfilled in Christ, the Shepherd who gathers God's scattered people into one.

The promise includes an everlasting kingdom, and Isaiah 9:6-7 identifies the promised ruler as the child whose government will be established forever on David's throne. Psalm 89:26-37 expresses the sure mercies of David and provides the foundation for what Isaiah 55 means by that phrase. The sure mercies mean mercy and forgiveness of sin with removal of the penalty of death and full assurance of the resurrection of the dead, known presently when character freely, gladly and fully passes by wrongs against oneself, ceases to speak evil of others, acts toward sinners as God acts, and proves faith in God's way over the natural way to gain the righteousness which is by faith of Jesus Christ, with safety and full assurance of life and peace here and forever to every repentant soul. The passage belongs to David's prophetic song of deliverance, fittingly connected with the triumph of Christ's resurrection.

Law Covenant and Righteousness

The law in view is the commandments of God set before Israel and their fathers, spoken at Sinai and identified as the Ten Commandments. That law was the law of David's kingdom and remains unchanged as the law of Christ's eternal kingdom, with David's throne appointed for the promised Seed through eternal ages. Every jot and tittle of the law remains while heaven and earth remain, and the commandments stay binding to be kept for entrance into life and for right to the tree of life. Since the prophecy about Christ will take as long to fulfill as the days of heaven, that is all eternity, God's law will remain unchanged forever. Keeping that law is the fruit required for entrance into the kingdom of heaven, and the seventh-day Sabbath in it stands blessed for Gentiles as well as Jews.

The oath to David is a covenant of promise, not a covenant commanding a law. Covenant here does not always mean the Ten Commandments but the conditional promises made to Israel. Those promises hold good just as long as His people walk in His way and trust Him, including restoration to their own land and being made a power and a praise in the earth above all other peoples. Fulfillment need not be unconditional, for God's acts and words are final and not experiments, yet the principle of His unalterable word also applies to the law given through Moses. The covenant is broken only when His people are determined to walk in their own way and put themselves where fulfillment is impossible in the very nature of the case, so He must permit them to have their own way.

The stability and enduring continuance of the kingdom rests on the everlasting righteousness provided in Christ and received through justification by faith. God's sworn guarantee secures the continuance of the kingdom because in Christ's continuance as the seed is bound up the continuance of the kingdom, and in Him the kingdom and the house of David are established forever. The enduring house is grounded in righteousness by faith, fulfilled in Christ as Son of God become Son of man occupying David's throne. Those who build on Christ share the promise as members of God's spiritual house, where God's law is written and Christ's presence pledges its eternal continuance.

The sure mercies of David provide the foundation for Isaiah 55, meaning that mercy and forgiveness of sin always involve removal of the penalty for sin, which is death, with full assurance of the resurrection of the dead. When character is developed to freely, gladly and fully passing by sins against oneself with delight and joy and ceasing to speak of evil in others, sin is forgiven in heaven and death loses its terrors. Such a one has passed from death to life with present knowledge of acceptance and sonship, shown by feeling and acting toward sinners as God does and deciding destiny daily by conduct toward others. Even when enemies develop among trusted brethren, proving faith in God's way over the natural way gains the righteousness of God by faith of Jesus Christ, with safety and full assurance of life and peace here and forever to every repentant soul. The oath by holiness not to lie to David illustrates the certainty of God's gracious promise of redemption through Jesus and the oath confirming it, since His faithfulness cannot be defeated by circumstances.

Assurance and Present Application

God's oath by His own holiness not to lie to David proves His steadfastness and faithfulness in keeping covenant with His children, making that covenant certain and unbreakable. Israel's disobedience would bring punishment but could not cancel the pledged endurance of David's seed and throne forever, so the certainty of the promise stands despite Israel's failures. The rejection of unbelieving nominal Israel does not and cannot destroy this promise, which is literally fulfilled to true Israel, the faithful overcomers.

The same assurance that God does not alter what He has spoken applies to the Sabbath, for God's rest given at creation remains a lasting memorial of His work and an emblem of spiritual rest. His covenant stands fast forever and every jot and tittle of the law remains while heaven and earth remain, the law in view being the commandments of God set before Israel and their fathers whose keeping is the fruit required for entrance into the kingdom of heaven. Even when David's children forsake God's law, walk not in His judgments, break His statutes and keep not His commandments, they are visited with the rod and with stripes in chastisement and temporary subversion of the kingdom, yet God's faithfulness will not fail and He will still perform what He swore and establish David's throne forever. The commandments are therefore still binding and must be kept to enter into life, with the seventh-day Sabbath blessed for Gentiles as well as Jews, and only those who keep the commandments of God and the faith of Jesus having right to the tree of life.

The truths contained in the promise are eminently practical, and misapplication of them leads to serious perversions of the gospel and of the relations of Christianity to the kingdoms of this present world. The psalm is also appealed to to teach the return of the Jews, the reign of Christ, and the inheritance of the saints, and to claim a special work among the Jews in the Christian dispensation.