1 Samuel 3
9 Ref Therefore Eli said unto Samuel, Go, lie down: and it shall be, if he call thee, that thou shalt say, Speak, Jehovah; for thy servant heareth. So Samuel went and lay down in his place.
10 And Jehovah came, and stood, and called as at other times, Samuel, Samuel. Then Samuel said, Speak; for thy servant heareth.