Psalms 89:39

Thou hast made void the covenant of thy servant: thou hast profaned his crown by casting it to the ground.

Psalm 89 is prophetic of David and David's greater Son, Jesus Christ, so the covenant and crown in this verse belong to David and his greater Son. The psalm identifies David's promised royal successor as Christ, the Son of David, who is to reign on David's throne with a kingdom that will endure forever. It upholds the promise to David that Christ will sit as King on the throne of God's kingdom on earth, the fifth universal kingdom. It shows God's covenant standing firm with Christ, and that covenant is the Ten Commandments, which are not abolished.

The kingdom promise to Jacob's descendants was conditional, and they forfeited it under the old covenant by failing to meet its conditions, so the kingdom can be regained only through an interest in Jesus, who is now Prince and soon to be crowned King. Because Solomon departed from God and succeeding generations of David did evil and failed to keep God's statutes and judgments and to obey and serve Him faithfully, the throne and kingdom of David were taken from them when Zedekiah fell captive into the hands of the king of Babylon, with God casting off, setting up the right hand of his adversaries, making his glory to cease and casting his throne down to the ground, and for thousands of years no throne and kingdom of David have been possessed by his seed, so history confirms that David's personal throne was cast to the ground. Therefore the promises of a seed established forever and a throne built up to all generations pertain only to Christ, who is far greater than David and greater than Solomon, and to His blessed seed.

The psalm's true meaning stands in harmony with the whole Bible and leaves no place for using it to prove a special future work for the literal Jews in the Christian dispensation, together with the reign of Christ and the inheritance of the saints, because the saints are taken to heaven at the second coming of Christ when the earth is desolated.