God spoke to Moses saying: Speak to Aaron saying:
A man of your seed, throughout their generations, who has in him a defect,
He shall not approach to offer the bread of his God.
For whatever man who has a blemish he shall not approach...
A blind man, or a lame, or he that has a flat note,
or anything superfluous, or a man who is broken-footed,
or broken-handed, or crook-backed, or a dwarf, or that has a blemish in his eye,
or be scruvy or scabbed, or whose testicles are crushed.
No man who has a blemish of the seed of Aaron the priest
should come near to offer the offering of the Lord...
                                                                                                    (Leviticus 21:17-21)