1 Samuel 3:6-8

Young's Literal Translation

⁶ And Jehovah addeth to call again Samuel, and Samuel riseth and goeth unto Eli, and saith, `Here [am] I, for thou hast called for me;' and he saith, `I have not called, my son, turn back, lie down.'

⁷ And Samuel hath not yet known Jehovah, and the word of Jehovah is not yet revealed unto him.

⁸ And Jehovah addeth to call Samuel the third time, and he riseth and goeth unto Eli, and saith, `Here [am] I, for thou hast called for me;' and Eli understandeth that Jehovah is calling to the youth.