Revelation 17:14
Revelation 17:1414They will make war against the Lamb, and the Lamb will triumph over them, because He is Lord of lords and King of kings; and He will be accompanied by His called and chosen and faithful ones.”
Watchtower commentary applies "Lord of lords and King of kings" to Jesus as a delegated title — given to him by Jehovah, just as kings have been given authority over earthly kingdoms in Scripture ( of Nebuchadnezzar; again of Nebuchadnezzar). The Lamb is the highest king under Jehovah, but Jehovah remains the supreme sovereign.
Notice the structure of v14. The Lamb conquers "because he is Lord of lords and King of kings" — the title is the cause of the conquering, not an office he was appointed to perform a function. He IS this. And in "the King of kings and Lord of lords" is the one who "alone is immortal and dwells in unapproachable light" — the standard description of the Father. The same exclusive title applied to Jesus in and 19:16 makes the identification: Jesus bears the name that belongs to God alone. Old Testament human-emperor uses (Nebuchadnezzar, Cyrus) operate at the level; the divine use of ("God of gods and Lord of lords") is the level Revelation applies to Jesus.