Lk 1:31-33, Jn 12:31-32, Rev 11:15
In the Old Testament, the psalmist confessed that God is the eternal King. (Psalm 10:16)
Psalm 10:16 The Lord is King for ever and ever: the heathen are perished out of his land.
The eternal king who will succeed the throne of David prophesied in the Old Testament has come to this earth. That is Jesus. (Luke 1:31-32)
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:
Jesus judged the world by dying on the cross. (John 12:31-32)\
John 12:31 Now is the judgment of this world: now shall the prince of this world be cast out. 32 And I, if I be lifted up from the earth, will draw all men unto me.
God and Christ rule the world forever. (Revelation 11:15)
Revelation 11:15 And the seventh angel sounded; and there were great voices in heaven, saying, The kingdoms of this world are become the kingdoms of our Lord, and of his Christ; and he shall reign for ever and ever.