Samual called and committed to God.

The Lord Calls Samuel 1Sa 3:1  And the child Samuel ministered unto the LORD before Eli. And the word of the LORD was precious in those days; there was no open vision. 1Sa 3:2  And it came to pass at that time, when Eli was laid down in his place, and his eyes began to wax dim, that he could not see; 1Sa 3:3  And ere the lamp of God went out in the temple of the LORD, where the ark of God was, and Samuel was laid down to sleep; 1Sa 3:4  That the LORD called Samuel: and he answered, Here am I. 1Sa 3:5  And he ran unto Eli, and said, Here am I; for thou calledst me. And he said, I called not; lie down again. And he went and lay down. 1Sa 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. And he answered, I called not, my son; lie down again. 1Sa 3:7  Now Samuel did not yet know the LORD, neither was the word of the LORD yet revealed unto him. 1Sa 3:8  And the LORD called Samuel again the third time. And he arose and went to Eli, and said, Here am I; for thou didst call me. And Eli perceived that the LORD had called the child. 1Sa 3:9  Therefore Eli said unto Samuel, Go, lie down: and it shall be, if he call thee, that thou shalt say, Speak, LORD; for thy servant heareth. So Samuel went and lay down in his place. 1Sa 3:10  And the LORD came, and stood, and called as at other times, Samuel, Samuel. Then Samuel answered, Speak; for thy servant heareth. 1Sa 3:11  And the LORD said to Samuel, Behold, I will do a thing in Israel, at which both the ears of every one that heareth it shall tingle. 1Sa 3:12  In that day I will perform against Eli all things which I have spoken concerning his house: when I begin, I will also make an end.