1 Samuel 3:3-7

and the lamp of God had not yet gone out, and Samuel was lying down in the temple of the Lord where the ark of God was,

that the Lord called Samuel; and he said, “Here I am.”

Then he ran to Eli and said, “Here I am, for you called me.” But he said, “I did not call, go back and lie down.” So he went and lay down.

And the Lord called yet again, “Samuel!” So Samuel got up and went to Eli and said, “Here I am, for you called me.” But he said, “I did not call, my son, go back and lie down.”

Now Samuel did not yet know the Lord, nor had the word of the Lord yet been revealed to him.