'King' in the Bible

They have over them as king the angel of the abyss. His name in Hebrew is "Abaddon," but in Greek, he has the name "Apollyon."

They sang the song of Moses, the servant of God, and the song of the Lamb, saying, "Great and marvelous are your works, Lord God, the Almighty! Righteous and true are your ways, you King of the nations.

These will war against the Lamb, and the Lamb will overcome them, for he is Lord of lords, and King of kings. They also will overcome who are with him, called and chosen and faithful."

He has on his garment and on his thigh a name written, "KING OF KINGS, AND LORD OF LORDS."