I beg to differ. All sin leads to death as all will sin and all will die.As for the passage in 1John, he is stating that not all sin will be “deadly” as in being dead to the faith .
I beg your pardon…where doesn John talk about dead in faith in this part of the epistle?
catholiceducation.org/articles/apologetics/ap0091.html
Purgatory: Holy Fire
SCOTT HAHN
Then, all of a sudden, I came across, read and then pondered a passage in 1st John, chapter 5. It says this, “If anyone sees his brother committing what is not a mortal sin, he will ask and God will give him life for those whose sin is not mortal. There is sin which is mortal. I do not say that one is to pray for that. All wrongdoing is sin, but there is sin which is not mortal.”
Now, John is talking about two kinds of sin. One is mortal, that is deadly. You cannot pray for somebody in mortal sin and sacrifice and have that prayer, intrinsically, be effective; whereas if somebody is in venial sin, you can actually, because you share a spiritual solidarity, you can actually sacrifice and pray on behalf of that person and in a sense restore them and strengthen them. Some sin kills. Other sin merely wounds. All sin is despicable. You might say, “Well, if it’s only venial, why not?” That’s not what the Church teaches or allows or implies. Somebody could say, “Well, look, if what I do doesn’t kill me, then, why don’t I go ahead and do it?”
You wouldn’t do that in natural life with your physical body. You wouldn’t say, “Well, I’m only going to be scarred for life. I’m only going to be maimed. I’m only going to be paralyzed; therefore, I can just go ahead and do these things. You know, third degree burns, but I can still breathe and metabolize.” No, we treat our bodies with respect. We’ve got to learn to treat our souls the same way. Just because a venal sin does not kill, it still scars and wounds and weakens and inclines us to mortal sin. All sin is despicable to God and to those who are His children.
But there is a distinction which John assumes. He doesn’t feel any need to argue it, but he takes it for granted. And I’ve got to tell you, when I first pondered this passage, it startled me because the conclusions are striking. Let’s keep that in mind because the definition assumes that prior understanding of the distinction between mortal and venial sins.
Now, let’s ask ourselves, “What is the evidence for this?” I want to share with you my own intellectual, spiritual pilgrimage on this particular point because, as I said, I didn’t just have intellectual problems, I had emotional problems, psychological difficulties with this teaching. One thing I did, though, was to ask the Lord to open my mind. And I continued to pray that as I went through the evidence for and against this idea of purgatory.