Mark 10:11
So He said to them, "If any man divorces his wife to marry another woman, he commits adultery against his former wife,
Luke 16:18
Any man who divorces his wife to marry another woman commits adultery, and the man who marries the woman divorced from her husband commits adultery.
Matthew 5:31-32
"It was also said, 'Whoever divorces his wife must give her a certificate of divorce.'
Matthew 19:9
I tell you, whoever divorces his wife for any other cause than her unfaithfulness, and marries another woman, commits adultery."
Romans 7:3
So if she marries another man while her husband is living, she is called an adulteress, but if he dies, she is free from that marriage bond, so that she will not be an adulteress though later married to another man.
1 Corinthians 7:4
The wife does not have the right to do as she pleases with her own body; the husband has his right to it. In the same way the husband does not have the right to do as he pleases with his own body; the wife has her right to it.
1 Corinthians 7:10-11
To the people already married I give this instruction -- no, not I but the Lord -- that a wife is not to leave her husband.
Hebrews 13:4
Marriage must be held in honor by all, and the marriage relations kept sacred. Persons who are sexually vicious and immoral God will punish.