Leviticus 21:6, 8, 17, 21-22
Leviticus 21:8 NIV
Regard them as holy, because they offer up the food of your God. Consider them holy, because I the LORD am holy—I who make you holy.
Leviticus 21:17 NIV
“Say to Aaron: ‘For the generations to come none of your descendants who has a defect may come near to offer the food of his God.