The young Samuel was serving the Lord under Eli. In those days the word of the Lord was rare and visions were not widespread. Eli, whose eyesight had grown dim, was lying down in his place, and Samuel was lying down in the Lord's temple where the ark of God was, before the lamp of God had gone out.
The Lord called Samuel by name. The boy answered and ran to Eli, thinking Eli had called him, but Eli said no and told him to lie down again. This happened three times. Samuel did not yet know the Lord, and the word of the Lord had not yet been revealed to him. The third time, Eli understood that the Lord was calling the boy and told him that if he was called again he should answer that the Lord should speak because his servant was listening.
The fourth time the Lord came and stood and called again, and Samuel answered as Eli had taught him. God told him he was about to do something in Israel that would make the ears of everyone who heard it tingle: he would carry out against Eli everything he had said about his house, because Eli knew his sons were behaving wickedly and had not restrained them. For that reason the guilt of Eli's house would not be atoned for by sacrifice or offering.
Samuel lay until morning and then opened the doors of the house of the Lord, but he was afraid to tell Eli the vision. Eli called him and urged him strongly not to hide anything. Samuel told him everything, and Eli answered that the Lord should do what seemed good to him. Samuel grew, the Lord was with him, and he let none of his words fall to the ground. From Dan to Beersheba, all Israel knew that Samuel was a prophet of the Lord, and the Lord continued to reveal himself at Shiloh by his word.