'King' in the Bible

and they have over them a king -- the messenger of the abyss -- a name is to him in Hebrew, Abaddon, and in the Greek he hath a name, Apollyon.

and they sing the song of Moses, servant of God, and the song of the Lamb, saying, 'Great and wonderful are Thy works, O Lord God, the Almighty, righteous and true are Thy ways, O King of saints,

these with the Lamb shall make war, and the Lamb shall overcome them, because Lord of lords he is, and King of kings, and those with him are called, and choice, and stedfast.'

and he hath upon the garment and upon his thigh the name written, 'King of kings, and Lord of lords.'