Jesus receives the title Messiah (Christ) eleven times in the Qur'an, Messiah, Jesus being the Messiah means that he is also King.
Luke 1:32-33 -"The Lord God will give to him the throne of his father David, and he will reign over the house of Jacob for ever; and of his kingdom there will be no end"
John 18:33-37 - Pilate asked Jesus: "'Are you the King of the Jews?' Jesus answered, 'Do you say this of your own accord, or did others say it to you about me?'" Then he explained: "'My kingship is not of this world; if my kingship were of this world, my servants would fight, that I might not be handed over to the Jews; but my kingship is not from this world.' Pilate said to him, 'So you are a king?' Jesus answered, 'You say that I am a king. For this I was born, and for this I have come into the world, to bear witness to the truth. Everyone who is of the truth hears my voice"
In biblical tradition, as seen above, Jesus is the King forever, he is Christ and Lord.
This is confirmed by David, my name,
Ps 110:1 - The LORD said unto my Lord, Sit thou at my right hand, until I make thine enemies thy footstool.
Jesus says
Mark 12:35-37 - "How is it that the scribes say that the Christ is the Son of David? 12:36 "For David himself said by the Holy Spirit:'The Lord said to my Lord, "Sit at My right hand, Till I make Your enemies Your footstool." ' 12:37 "Therefore David himself calls Him 'Lord'; how is He then his Son?" And the common people heard Him gladly.
Lady Fatima - In the Qur'an, why is Jesus "The King"?