Romans 7:2

1 Corinthians 7:39 NIV
A woman is bound to her husband as long as he lives. But if her husband dies, she is free to marry anyone she wishes, but he must belong to the Lord.

Genesis 2:23-24 NIV
The man said, “This is now bone of my bones and flesh of my flesh; she shall be called ‘woman,’ for she was taken out of man. ” That is why a man leaves his father and mother and is united to his wife, and they become one flesh.