Mark 10:11
He replied, "Whoever divorces his wife and marries another woman, commits adultery against the first wife;
Luke 16:18
Every man who divorces his wife and marries another commits adultery; and he who marries her when so divorced from her husband commits adultery.
Matthew 5:31-32
"It was also said, 'If any man puts away his wife, let him give her a written notice of divorce.'
Matthew 19:9
And I tell you that whoever divorces his wife for any reason except her unfaithfulness, and marries another woman, commits adultery."
Romans 7:3
This accounts for the fact that if during her husband's life she lives with another man, she will be stigmatized as an adulteress; but that if her husband is dead she is no longer under the old prohibition, and even though she marries again, she is not an adulteress.
1 Corinthians 7:4
A married woman is not mistress of her own person: her husband has certain rights. In the same way a married man is not master of his own person: his wife has certain rights.
1 Corinthians 7:10-11
But to those already married my instructions are--yet not mine, but the Lord's--that a wife is not to leave her husband;
Hebrews 13:4
Let marriage be held in honour among all, and let the marriage bed be unpolluted; for fornicators and adulterers God will judge.