Leviticus 21:18-20

18A priest who cannot see must not sacrifice the food to God. A priest who cannot walk must not sacrifice food to God. A priest with a body that is the wrong shape must not offer food to God.

19A priest with a hand that is the wrong shape must not offer food to God. A priest with a foot that is the wrong shape must not offer food to God.

20A priest with a back that is not straight must not offer food to God. Neither must a priest who is very small offer a food gift. A priest who has an eye disease or a skin disease must not offer food to God. Neither must a priest offer food if his testicles are spoiled.