Leviticus 21:19

17“Say to Aaron, ‘None of your offspring throughout their generations who has a defect may approach to offer the bread of his God.

18For whatever man he is that has a defect, he shall not draw near: a blind man, or a lame, or he who has a flat nose, or any deformity,

19or a man who has an injured foot, or an injured hand,

20or hunchbacked, or a dwarf, or one who has a defect in his eye, or an itching disease, or scabs, or who has damaged testicles.

21No man of the offspring of Aaron the priest who has a defect shall come near to offer the offerings of the LORD made by fire. Since he has a defect, he shall not come near to offer the bread of his God.