Im a little curious as to how you say that certain things completely miss the point of the New Covenant especially when the New Testament is its own witness and if the Scriptures are as flexible as you believe, then how can you decide what the point of the New Testament is especially when you are trying to use the NT as proof for your position? I presume that your line of approach is that we can simply do as we please and if it feels good then all is well! How then do you handle Pauls strong warning in 1Co 14:33-38
let him acknowledge that what I am writing to you is the Lords command. If he ignores this he himself is to be ignored.
For some reason, when you quoted me you completely ignored/removed the last portion of my paragraph, which portion was hardly an optional addendum:
"I regard most of the 'how to act' instructions of the NT as addressing practical concerns in specific congregations, not as universally applicable. The one and only universally applicable rule is 'Love on another' (in John's works) or 'Love your neighbor as yourself' (in the Synoptics, Paul, and James)."
I would add that this can most efficiently be summarized as "Treat others as you would have them treat you," the so-called "Golden Rule."
Paul is clear and emphatic in teaching that we are no longer under the Law, and that while the Law itself was good, its effect in controlling bad behavior was not only useless but counterproductive. And contrary to what some claim, it was not only the ritual and civil laws he repudiated, but the entirety of it except for "Love your neighbor as yourself" -- which is not even part of the Decalogue. There are no "clean" or "unclean" foods. There are no "holy" or "unholy" days -- even Sabbaths or Sundays. There are no mandatory rites.
Yes, I realize in his vice lists and elsewhere he forbids certain behaviors, declaring that some will exclude from the Kingdom. Most of those -- adultery, strife, slander, etc. -- are simply specific examples of breaching the Law of Love. Any that go beyond that must be explained within the more consistent context that teaches that "rules don't work" and "the only law is Love"; maybe they are mistranslations, maybe they are temporary measures to deal with specific issues in those churches, maybe they are means to avoid unnecessarily offending the local culture or government.
Whether or not it "feels good," BTW, has little to do with it.
As for the specific question about 1 Cor. 14:33-38, part of the way I deal with it is to accept the text-critical expertise of Fee, Payne, etc. and dismiss vv. 34-35 as margin glosses.