Leviticus 24:9-10

⁹And it shall belong to Aaron and to his sons; and they shall eat it in a holy place; for it is most holy unto him, from the fire-offerings of the Lord, as a perpetual fixed portion.

¹⁰And there went forth a son of an Israelitish woman, but who was the son of an Egyptian man, among the children of Israel; and there quarrelled together in the camp this son of the Israelitish woman and an Israelitish man.