When we come to accept all sin for what it is - dead actions and dead thoughts of dead men - we can come to see how life is riddled with it, and can really begin to live otherwise, focusing not on controlling our bad acts, but focusing on living our Christ life, and avoiding the whole death-trip entirely.We need to be honest with ourselves, and stop making exceptions for sin!
Wrong ideas about sin will send us off course, will force us to not accept some Scriptures, to have to "re-imagine" them so we can make it all "fit".
So long as someone is "ticking boxes", didn't do that, didn't do this, didn't do the other thing, I'm OK, they are missing the point about what sanctification really is. Sanctification is not a system of avoiding bad acts and doing good acts. It is living the Christ life instead of the flesh life.
We should become able to recognize what is Spirit, and what is flesh, and learning the Bible gives us that ability. But it won't be effective in us if we are not willing to subject ourselves to ALL it says.
Playing one passage against another gives us the excuses for sin that we look for. Harmonizing all of them without having to "re-imagine" any will give us what we need.
Much love!