'King of Israel' in the Bible

"He saved others, but he cannot save himself! He is the king of Israel! If he comes down now from the cross, we will believe in him!

Let the Christ, the king of Israel, come down from the cross now, that we may see and believe!" Those who were crucified with him also spoke abusively to him.

Nathanael answered 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. They began to shout, "Hosanna! Blessed is the one who comes in the name of the Lord! Blessed is the king of Israel!"