'King of Israel' in the Bible

"He saved others but can't save himself! He is the king of Israel. Let him come down from the cross now, and we will believe in him.

Let the Messiah, the king of Israel, come down from the cross now, since seeing is believing!" Even the men who were crucified with him kept insulting him.

Nathaniel replied to him, "Rabbi, you are the Son of God! You are the King of Israel!"

So they took branches of palm trees and went out to meet him, shouting, "Hosanna! How blessed is the one who comes in the name of the Lord, the King of Israel!"