'King of Israel' in the Bible

He saved others; himself he cannot save. If he be the King of Israel, let him now come down from the cross, and we will believe him.

Let Christ the King of Israel descend now from the cross, that we may see and believe. And they that were crucified with him reviled him.

Nathanael answered and saith unto him, Rabbi, thou art the Son of God; thou art the King of Israel.

Took branches of palm trees, and went forth to meet him, and cried, Hosanna: Blessed is the King of Israel that cometh in the name of the Lord.