“The two become one flesh” never meant marriage, but was a prophecy

12 The whole to myself is lawful, but the whole is not expedient. The whole to myself is lawful, but myself will not be mastered [ἐξουσιάζω – exercise authority over] by anyone.

13 The foods [are] for the belly, and the belly for the foods. But the Theos, and this one and these ones shall make of no effect; and the body is not to the whoredom, but the Master, and the Master to the body.

Chad = Oneness. The two become one. The Body on one edge, the Master on the opposing edge.

14 And the Theos and the Master has wakened up, and ourselves will raise out through the power of himself.

15 Have ye not known that the bodies of yourselves the members of the Christ, are? Having lifted up, then, the members of the Christ, should I make members of a Harlot? May it never become.

16 Or have ye not known that the one being glued to the Harlot is one body? ‘For they will be — he is saying — the two into one flesh.’

17 However the one being glued to Master, is one spirit [sword of the spirit].

18 Flee the whoredom; the whole sin — whom if a man may make— is without the body. However the one whoring, into the own body is sinning.

19 Or have ye not known that the body of yourselves is a temple of the Holy Spirit in yourselves, whom ye have from Theos? And ye are not of yourselves [reflexive genitive pronoun],

20 for ye were bought at a [bride] price; exalt, then, the Theos in the body of yourselves and in the spirit of yourselves, whoever are of the Theos.

1 Corinthians 6:12-20 literal

There are two Bodies with which one can become one flesh with—Christ’s Body of Death (eat my flesh, drink my blood), and Christ’s Body of Life (rib from his side). Christ’s Body of Life (kindness) is that “sister” on account of whom Christ bore (and bears) his guilt according to the Levitical Law:

And a man which is taking אֶת-his sister, a daughter of his father or a daughter of his mother, and he has seen [completed action] אֶתher nakedness and herself is seeing [incomplete action] אֶתhis nakedness, a kindness (hesed) is himself (הוא). And they [the spouses] have been cut off to the eyes of the sons of their people. He has exposed a nakedness of his sister. He is lifting his guilt.

Leviticus 20:17 literal

Recall that a “person’s nakedness” is not necessarily their own. But their spouse’s. In that sense, Christ, in fulfilling this law, is bearing not his own guilt but the guilt of the man the sister was bound to. Kindness!

You are not exposing the nakedness of thy father and the nakedness of thy mother, thy mother is himself (הוא).   You are not exposing her nakedness.

The nakedness of the woman of thy father you are not exposing.  The nakedness of thy father is himself (הוא).

Leviticus 18:7-8 literal

his nakedness” = the woman

her nakedness” = the man

When two are prophetically one, It turns the whole saying on its head—an obscure enigma. But this is the premise for Romans 7:2-3, 1 Cor. 7:39