Leviticus 21:12-18
English Standard Version
Chapter 21
12He shall not go out of the sanctuary, lest he profane the sanctuary of his God, for the consecration of the anointing oil of his God is on him: I am the Lord. 13And he shall take a wife in her virginity. 14A widow, or a divorced woman, or a woman who has been defiled, or a prostitute, these he shall not marry. But he shall take as his wife a virgin of his own people, 15that he may not profane his offspring among his people, for I am the Lord who sanctifies him."
16And the Lord spoke to Moses, saying,
17"Speak to Aaron, saying, None of your offspring throughout their generations who has a blemish may approach to offer the bread of his God.
18For no one who has a blemish shall draw near, a man blind or lame, or one who has a mutilated face or a limb too long,