'It is I' in the Bible

But he tried to prevent him. "It is I," he said, "who need to be baptized by you, and are you coming to me?"

But the Pharisees kept saying, "It is in the power of the Prince of the demons that he is casting out demons."

"Behold, it is I who am sending you forth like sheep among wolves. Be then as serpents and as guileless as doves.

"But if it is in the power of the Spirit of God is already upon you.

But at once Jesus spoke to them, "Courage," he said, "it is I. Fear not."