Numbers 4:19
But thus do to them, that they may live, and not die, when they approach to the most holy things: Aaron and his sons shall go in, and appoint them every one to his service and to his burden:
Nave's Topical Index—AKJV

1 Samuel 2:36
And it shall come to pass, that every one that is left in your house shall come and crouch to him for a piece of silver and a morsel of bread, and shall say, Put me, I pray you, into one of the priests' offices, that I may eat a piece of bread.
Nave's Topical Index—AKJV