Leviticus 21:7
"They shall not take a wife that is a whore, or profane; neither shall they take a woman put away from her husband: for he is holy unto his God."
Cross References (ranked by relevance)
Neither shall they take for their wives a widow, nor her that is put away: but they shall take maidens of the seed of the house of Israel, or a widow that had a priest before.
Even so must their wives be grave, not slanderers, sober, faithful in all things.
Thou shalt sanctify him therefore; for he offereth the bread of thy God: he shall be holy unto thee: for I the LORD, which sanctify you, am holy.
Thus saith the LORD, Where is the bill of your mother’s divorcement, whom I have put away? or which of my creditors is it to whom I have sold you? Behold, for your iniquities have ye sold yourselves, and for your transgressions is your mother put away.