1 Samuel 3:6

And the Lord called yet again, Samuel! And Samuel arose, and went to Eli, and said, Here am I; for thou didst call me. He was again, as a faithful servant, ready to do his master's bidding; there was no peevish discontent in his voice for having been called out of his rest. And he, Eli, answered, I called not, my son; lie down again, still believing that the young man was being misled by some illusion of the senses.