Ps 89:27-29,36-37,49, Mt 1:1, Lk 1:31-33
In the Old Testament, the psalmist said that God would give the throne of David forever to Christ, whom he would send as a descendant of David. (Psalms 89:3-4, 27-29, 36-37,49)
Psalms 89:3 I have made a covenant with my chosen, I have sworn unto David my servant, 4 Thy seed will I establish for ever, and build up thy throne to all generations. Selah. 27 Also I will make him my firstborn, higher than the kings of the earth. 28 My mercy will I keep for him for evermore, and my covenant shall stand fast with him. 29 His seed also will I make to endure for ever, and his throne as the days of heaven. 36 His seed shall endure for ever, and his throne as the sun before me. 37 It shall be established for ever as the moon, and as a faithful witness in heaven. Selah. 49 Lord, where are thy former lovingkindnesses, which thou swarest unto David in thy truth?
Jesus is the Christ who came as the descendant of David and received the throne of David from God forever. (Matthew 1:1, Luke 1:31-33, Matthew 1:16)
Matthew 1:1 The book of the generation of Jesus Christ, the son of David, the son of Abraham.
Luke 1:31 And, behold, thou shalt conceive in thy womb, and bring forth a son, and shalt call his name Jesus. 32 He shall be great, and shall be called the Son of the Highest: and the Lord God shall give unto him the throne of his father David: 33 And he shall reign over the house of Jacob for ever; and of his kingdom there shall be no end.
Matthew 1:16 And Jacob begat Joseph the husband of Mary, of whom was born Jesus, who is called Christ.