Jesus Is The Son of David Meaning Descendant

Zechariah 14:9;16, And the LORD shall be king over all the earth: in that day shall there be one LORD, and his name one...And it shall come to pass, that every one that is left of all the nations which came against Jerusalem shall even go up from year to year to worship the King, the LORD of hosts, and to keep the feast of tabernacles.

If Jesus will be king of the entire earth, then that means David is not going to be king over Israel in the millennial reign. Jesus is called the son of David and the lion of the tribe of Judah, so he will be the only one ruling the earth in the future, David's throne is established forever because Jesus will forever be on the throne.