By Jesse Morrell
This was a post I made in my Facebook theology discussion group: https://www.facebook.com/groups/TheologyDiscussionGroup/
Even apart from the scriptures that teach such, the doctrine that salvation can be forfeited through sin is a logical conclusion of the necessity of repentance from sin as a precondition for forgiveness.
If it is granted that repenting of your sin is a precondition of forgiveness for that sin, then it stands to reason that a believer who returns to his sin is unforgiven until he repents. Thus, a believer can forfeit his salvation through sin (like the unforgiving servant did).
The Calvinist system seems to be inconsistent on this point. They will admit that repentance is necessary for unbelievers to be forgiven but deny that a believer who sins is unforgiven until he repents. They teach that to initially get saved an unbeliever must repent, but if a believer sins he will repent (perseverance of the saints) yet was still saved while he was sinning and impenitent.
Can any Calvinists in this group enlighten me on this issue?
I wonder if this is why some Calvinists become straight up antinomians, teaching that you do not need to repent of your sins at all and classify that as “works based salvation” or “salvation by works,” because logically repentance as a precondition for forgiveness means that you can lose your salvation through sin and impenitence and thus need to live a holy and obedient life as a condition of keeping your salvation.
So to be consistent, it would seem to me, that Calvinists must either adopt the Arminian doctrine of losing your salvation or reject repentance from sin all together and become Antinomians.