Leviticus 21:17-21

17“Tell Aaron: None of your descendants throughout your generations who has a physical defect is to come near to present the food of his God.

18No man who has any defect is to come near: no man who is blind, lame, facially disfigured, or deformed;

19no man who has a broken foot or hand,

20or who is a hunchback or a dwarf, or who has an eye defect, a festering rash, scabs, or a crushed testicle.

21No descendant of the priest Aaron who has a defect is to come near to present the food offerings to the Lord. He has a defect and is not to come near to present the food of his God.