Sorry for creating a duplicated thread (I need a quick answer)
Why a "quick answer"? Contemplating something that makes you nervous?
And are we to trust Paul's gospel?
Of course we are. It's the biblical gospel.
Contrary to the various nay-saying responses, yes. For many reasons.
For me, the primary reason is that Rom 6:23 describes eternal life as a gift of God. And then Rom 11:29 teaches that the gifts and call of God are irrevocable.
Therefore, eternal life is irrevocable.
But there are many other reasons.
As a fact, there are zero verses that teach that salvation can be lost. To be sure, there are many verses used in defense of that claim, but none of them plainly say that either salvation or eternal life can be lost for any reason.
Also, those who espouse loss of salvation cannot show any evidence that any of the things that accompany salvation can be UN-done.
Such as:
justification. Rom 3-4
forgiveness of all sins. Acts 10:43
new birth (born again). John 1:12, 3:5
sealing with the Holy Spirit. Eph 1:13,14
If salvation can be lost, then there must be verses that address these issues and show that they ALL can be UN-done.
But, there aren't any.
But, going back to the "quick answer", having salvation permanently doesn't get anyone off the hook for rebellion against God's will. Heb 12 is quite clear about His discipline for wayward children. The KJV says "scourge", but the Greek word refers to being skinned alive with a whip, the common form of punishment in Jesus' day. Both the Jewish leadership as well as the Romans utilized whipping, which literally took the skin off one's back.
While the verse in Heb 12 is figurative, the point is clear; discipline from the hand of God isn't something to dismiss or take lightly.
Permanent salvation doesn't mean that God lets His children get away with whatever they want to do.