Mark 10:11
He said: He who divorces his wife and marries another commits adultery against her.
Luke 16:18
A man who divorces his wife and marries another woman commits adultery. The man who marries a divorced woman commits adultery. [Jesus continued to tell illustrations.]
Matthew 5:31-32
Again, it was said, 'Whoever gets rid of his wife has to give her a certificate of divorce.'
Matthew 19:9
I tell you, whoever divorces his wife, except for fornication, and marries another, commits adultery. And he who marries her when she is divorced, commits adultery.
Romans 7:3
So then if, while the husband lives, she is joined to another man, she will be called an adulteress. If the husband dies, she is free from the law, so that she is no adulteress, though she is joined to another man.
1 Corinthians 7:4
The wife has no authority over her own body, but her husband does. Likewise also the husband has no authority over his own body, but his wife does.
1 Corinthians 7:10-11
To the married I command, yet not I, but the Lord commands do not let the wife depart from her husband.
Hebrews 13:4
Let marriage be honorable among all, and let the marriage bed be undefiled: for God will judge fornicators and adulterers.