God.

Proverbs 2:17
who abandons the partner of her youth and forgets the covenant of her God.

Malachi 2:14
Yet you ask, "Why?" It is because the LORD has been a witness between you and the wife of your youth, against whom you have broken faith, though she is your companion and your wife by covenant.

Mark 10:9
Therefore what God has joined together, let man not separate."

Romans 7:2
For instance, a married woman is bound by law to her husband as long as he lives. But if her husband dies, she is released from the law of marriage.

1 Corinthians 7:10-14
To the married I give this command (not I, but the Lord): A wife must not separate from her husband. . . .

Ephesians 5:28
In the same way, husbands ought to love their wives as their own bodies. He who loves his wife loves himself.

Hebrews 13:4
Marriage should be honored by all and the marriage bed kept undefiled, for God will judge the sexually immoral and adulterers.

hath.