21 Whoever of the seed of Aaron the priest has a blemish on him, shall not draw near to offer sacrifices to your God, because he has a blemish on him; he shall not draw near to offer the gifts of God.
Leviticus 21:21 Cross References - CAB
Leviticus 21:6
6 They shall be holy to their God, and they shall not profane the name of their God; for they offer the sacrifices of the Lord as the gifts of their God, and they shall be holy.
Leviticus 21:8
8 And you shall hallow him; he offers the gifts of the Lord your God: he shall be holy, for I the Lord that sanctify them am holy.
Leviticus 21:17
17 Say to Aaron, A man of your tribe throughout your generations, who shall have a blemish on him, shall not draw near to offer the gifts of his God.