1 Samuel 2:18-20

Now Samuel was ministering before the LORD, as a boy wearing a linen ephod. And 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 yearly sacrifice. Then Eli would bless Elkanah and his wife and say, “May the LORD give you children from this woman in place of the one she dedicated to the LORD.” And they went to their own home.