1 Samuel 3:4, 6, 8, 10

Then the LORD called Samuel, and he said, “Here I am!”

And the LORD called again, “Samuel!” and Samuel arose and went to Eli and said, “Here I am, for you called me.” But he said, “I did not call, my son; lie down again.”

And the LORD called Samuel again the third time. And he arose and went to Eli and said, “Here I am, for you called me.” Then Eli perceived that the LORD was calling the boy.

And the LORD came and stood, calling as at other times, “Samuel! Samuel!” And Samuel said, “Speak, for your servant hears.”