Simply say this one thing: you must make an active attempt reject sinfulness to receive full grace in Judgement.
For some reason there will almost always be a few pop up to rebuke you. They'll incorrectly quote scripture, call you names, invoke the thief on the cross and generally act like their so, SOOOOO holy. Under all of their rhetoric this is what they are saying..
You can do whatever you want and still go the Heaven. Are you a drunkard? Saved. Gambler? Saved. Womanizer? Saved. Are you a pervert? Saved. Commit child sacrifice? Saved. I mean after all, these same people tell us all sin is the same and one sin is as great as all sin, right? So why would a gambler go to Heaven but not one who commits child sacrifice? This is incorrect teaching btw.
This is the truth. These people are either jews or coping. Either they want to lead others into sin or they are already in sin. In the latter case, they see themselves named in Romans 1 and are heavily distressed.
These people are little more than a stumbling block. Reject them as being un-Christian and degenerate.
I think we agree though that grace isn’t just a safety net like a lot of people seem to treat it.
This starts working into predestination territory. Why would one who genuinely calls on Jesus be saved but another not? I unfortunately have to ward off sin every day of my life. For a moment, I fell back into a sin that I previously conquered. Through prayer and promise to the Lord I have managed to keep away from it, though the temptation never subsides. God forbid that I die in that sin.
Faith must be maintained and tempered. We see the theme used in the story of Abraham, who proved righteous, Job, who proved faithful, and in Exodus. In the latter case it was intercession which saved the Israelites.