Mark 10:8

and the two shall become one flesh.' So they are no longer two, but one flesh.

Or do you not know that he who joins himself to a prostitute becomes one body with her? For, as it is written, "The two shall become one flesh."

So husbands ought also to love their wives as their own bodies. He who loves his wife loves himself.

Treasury of Scripture Knowledge

And they twain shall be one flesh: so then they are no more twain, but one flesh.

Or do you not know that he who joins himself to a prostitute becomes one body with her? For, as it is written, "The two shall become one flesh."

So husbands ought also to love their wives as their own bodies. He who loves his wife loves himself.

"For this reason a man shall leave his father and mother and be joined to his wife, and the two shall become one flesh."