Genesis 2:23-24

23Then the man said, ‘Finally, this is someone who is right for me. She has bones that are taken from my bones. Her body comes from my body. I will call her “woman” because God used me, a man, to make her.’

24Because of this, when a man marries, he leaves his father and his mother. Instead, God joins the man and his wife together. The two people become as one body.