Leviticus 21:15

12 neither shall he go out of the sanctuary, nor profane the sanctuary of his God; for the crown of the anointing oil of his God is on him: I am Yahweh.

13 He shall take a wife in her virginity.

14 A widow, or one divorced, or a profane woman, a prostitute, these shall he not take: but a virgin of his own people shall he take as a wife.

15 He shall not profane his seed among his people: for I am Yahweh who sanctifies him.

16 Yahweh spoke to Moses, saying,

17 Speak to Aaron, saying, Whoever he be of your seed throughout their generations that has a blemish, let him not approach to offer the bread of his God.

18 For whatever man he be that has a blemish, he shall not approach: a blind man, or a lame, or he that has a flat nose, or any deformity,