Ephesians 5:31

5:31 For this reason a man will leave his father and mother and will be joined to his wife, and the two will become one flesh.

Ephesians 5:33

5:33 Nevertheless, each one of you must also love his own wife as he loves himself, and the wife must respect her husband.

Genesis 2:21-24

2:21 So the Lord God caused the man to fall into a deep sleep, and while he was asleep, he took part of the man’s side and closed up the place with flesh. 2:22 Then the Lord God made a woman from the part he had taken out of the man, and he brought her to the man. 2:23 Then the man said,

“This one at last is bone of my bones

and flesh of my flesh;

this one will be called ‘woman,’

for she was taken out of man.”

2:24 That is why a man leaves his father and mother and unites with his wife, and they become a new family.

Matthew 19:5

19:5 and said, ‘For this reason a man will leave his father and mother and will be united with his wife, and the two will become one flesh’?