And the angel of the LORD called unto him out of heaven, and said, Abraham, Abraham: and he said, Here am I.
And when the LORD saw that he turned aside to see, God called unto him out of the midst of the bush, and said, Moses, Moses. And he said, Here am I.
1 Samuel 3:4
That the LORD called Samuel: and he answered, Here am I.
Also I heard the voice of the LORD, saying, Whom shall I send, and who will go for us? Then said I, Here am I; send me.