Leviticus 22:9-11

⁹And they shall keep my ordinances, that they do not bear iniquity because of them, and die because of them, if they shall profane them: I am the Lord God that sanctifies them.

¹⁰And no stranger shall eat the holy things: one that sojourns with a priest, or a hireling, shall not eat the holy things.

¹¹But if a priest should have a soul purchased for money, he shall eat of his bread; and they that are born in his house, they also shall eat of his bread.