Leviticus 24:9-10

⁹And it shall be for Aaron and his sons; and they shall eat it in a holy place: for it is most holy unto him of the offerings of Jehovah made by fire by a perpetual statute.

¹⁰And the son of an Israelitish woman, whose father was an Egyptian, went out among the children of Israel; and the son of the Israelitish woman and a man of Israel strove together in the camp: