Genesis 2:23-25

Then Adam said: “At last! One like me! Her bones were formed from my bones, and her flesh from my flesh! This one will be called ‘Woman,’ for she was taken from man.” For this reason, a man leaves his father and his mother to be unselfishly attached to his wife. They become one flesh as a new family! The man and his wife felt no shame, unaware that they were both naked.