31 Then the boy Samuel ministered to the Lord before Eli. And the word of the Lord was rare in those days; there was no widespread revelation. 2 And it came to pass at that time, while Eli was lying down in his place, and when his eyes had begun to grow so dim that he could not see, 3 and before the lamp of God went out in the tabernacle of the Lord where the ark of God was, and while Samuel was lying down, 4 that the Lord called Samuel. And he answered, "Here I am!" 5 So he ran to Eli and said, "Here I am, for you called me." And he said, "I did not call; lie down again." And he went and lay down. 6 Then the Lord called yet again, "Samuel!" So Samuel arose and went to Eli, and said, "Here I am, for you called me." He answered, "I did not call, my son; lie down again." 7 (Now Samuel did not yet know the Lord, nor was the word of the Lord yet revealed to him.) 8 And the Lord called Samuel again the third time. Then he arose and went to Eli, and said, "Here I am, for you did call me." Then Eli perceived that the Lord had called the boy. 9 Therefore Eli said to Samuel, "Go, lie down; and it shall be, if He calls you, that you must say, 'Speak, Lord, for Your servant hears.' " So Samuel went and lay down in his place. 10 Now the Lord came and stood and called as at other times, "Samuel! Samuel!" And Samuel answered, "Speak, for Your servant hears."
Matthew Henry's Commentary on 1 Samuel 3:1-10
Commentary on 1 Samuel 3:1-10
(Read 1 Samuel 3:1-10)
The call which Divine grace designs shall be made effectual; will be repeated till it is so, till we come to the call. Eli, perceiving that it was the voice of God that Samuel heard, instructed him what to say. Though it was a disgrace to Eli, for God's call to be directed to Samuel, yet he told him how to meet it. Thus the elder should do their utmost to assist and improve the younger that are rising up. Let us never fail to teach those who are coming after us, even such as will soon be preferred before us, John 1:30. Good words should be put into children's mouths betimes, by which they may be prepared to learn Divine things, and be trained up to regard them.