1 Samuel 3:4-8

4Then the LORD called Samuel. Samuel answered, “Here I am.”

5And he ran to Eli and said, “Here I am; you called me.” But Eli said, “I did not call; go back and lie down.” So he went and lay down.

6Again the LORD called, “Samuel!” And Samuel got up and went to Eli and said, “Here I am; you called me.” “My son,” Eli said, “I did not call; go back and lie down.”

7Now Samuel did not yet know the LORD : The word of the LORD had not yet been revealed to him.

8A third time the LORD called, “Samuel!” And Samuel got up and went to Eli and said, “Here I am; you called me.” Then Eli realized that the LORD was calling the boy.