1 Samuel 2:26-28

26 The boy Samuel continued to grow and to gain favor both with the LORD and with people.

27 A prophet came to Eli with this message from the LORD: "When your ancestor Aaron and his family were slaves of the king of Egypt, I revealed myself to Aaron.

28 From all the tribes of Israel I chose his family to be my priests, to serve at the altar, to burn the incense, and to wear the ephod to consult me. And I gave them the right to keep a share of the sacrifices burned on the altar.