1 Samuel 3:10-15, 19

10 The Lord came and stood there, calling as at the other times, “Samuel! Samuel!”
Then Samuel said, “Speak, for your servant is listening.”
11 And the Lord said to Samuel: “See, I am about to do something in Israel that will make the ears of everyone who hears about it tingle. 12 At that time I will carry out against Eli everything I spoke against his family—from beginning to end. 13 For I told him that I would judge his family forever because of the sin he knew about; his sons blasphemed God, and he failed to restrain them. 14 Therefore I swore to the house of Eli, ‘The guilt of Eli’s house will never be atoned for by sacrifice or offering.’”
15 Samuel lay down until morning and then opened the doors of the house of the Lord. He was afraid to tell Eli the vision, 16 but Eli called him and said, “Samuel, my son.”
Samuel answered, “Here I am.”

19 The Lord was with Samuel as he grew up, and He let none of Samuel’s words fall to the ground. 20 And all Israel from Dan to Beersheba recognized that Samuel was attested as a prophet of the Lord. 21 The Lord continued to appear at Shiloh, and there He revealed Himself to Samuel through His word.