Leviticus 21:13-17

And he shall take a wife in her virginity.

A widow, or a divorced woman, or profane, or an harlot, these shall he not take: but he shall take a virgin of his own people to wife.

Neither shall he profane his seed among his people: for I the LORD do sanctify him.

And the LORD spake unto Moses, saying,

Speak unto Aaron, saying, Whosoever he be of thy seed in their generations that hath any blemish, let him not approach to offer the bread of his God.