Rationalize Law keeping all you want.
It doesn’t change that we are not bound by it for salvation.
Romans 3:31 Do we then make void the law through faith? Certainly not! On the contrary, we establish the law.
Matt 5:17 Do not think that I have come to abolish the Law or the Prophets. I have not come to abolish them, but to fulfill them.
The purpose of the Law is to point out sin, not save us. Don't conflate this point.
Romans 7 What shall we say then? Is the law sin? God forbid. Nay, I had not known sin, but by the law: for I had not known lust, except the law had said, Thou shalt not covet…