1 Samuel 2:18-20

18But Samuel was ministering before Adonai, as a boy girded with a linen ephod.

19Moreover, his mother would make him a little robe and bring it to him from year to year when she would come up with her husband to offer the annual sacrifice.

20Then Eli would bless Elkanah and his wife and say, “May Adonai give you offspring from this woman instead of the one she requested from Adonai.” Then they would return to their place.