1 Samuel 3:4 KJV

That the Lord called Samuel: and he answered, Here am I.
1 Samuel 3:4, King James Version

In context

3 And ere the lamp of God went out in the temple of the Lord, where the ark of God was, and Samuel was laid down to sleep;

4 That the Lord called Samuel: and he answered, Here am I.

5 And he ran unto Eli, and said, Here am I; for thou calledst me. And he said, I called not; lie down again. And he went and lay down.