Matthew 19:6
So then, they are no longer two but one flesh. Therefore what God has joined together, man must not separate."
Romans 7:2
For the married woman is bound by law to [her] husband while he lives, but if her husband dies, she is released from the law of the husband.
Proverbs 2:17
she who forsakes the partner of her youth and has forgotten the covenant of her God,
Malachi 2:14
But you ask, "{For what reason}?" Because Yahweh stands as a witness between you and the wife of your youth, against whom you have been unfaithful, even though she [is] your marriage partner and {your wife by covenant}.
Mark 10:9
Therefore what God has joined together, man must not separate."
1 Corinthians 7:10-14
To the married I command--not I, but the Lord--a wife must not separate from [her] husband.
Ephesians 5:28
Thus also husbands ought to love their own wives as their own bodies. The one who loves his own wife loves himself.
Hebrews 13:4
Marriage [must be] held in honor by all, and the marriage bed [be] undefiled, because God will judge sexually immoral people and adulterers.