“Mortal sins”: Sins which send you to hell?

Quoting from John’s first letter:

1 John 5.15-17 KJV

15 And if we know that he hear us, whatsoever we ask, we know that we have the petitions that we desired of him. 16 If any man see his brother sin a sin which is not unto death, he shall ask, and he shall give him life for them that sin not unto death. There is a sin unto death: I do not say that he shall pray for it. 17 All unrighteousness is sin: and there is a sin not unto death.

This passage has managed to confuse an awful lot of Christians. What’s John mean by ἁμαρτάνουσιν πρὸς θάνατον/amartánusin pros thánaton, “sinning unto death”? Or “a sin not unto death”?

Both Paul and James wrote that sin causes death. “The wages of sin is death” Ro 6.23 and “sin when it is fully grown brings forth death” Jm 1.15 and all that. They weren’t just speaking of those sins which obviously cause death, like murder and suicide and abortion; nor those sins which indirectly but still kinda obviously cause death, like gluttony or addictions or other lapses of self-control. Popular Christian thinking is that all our sins contribute to the decay, and eventual end, of our lives. Sin is a cancer which eats away at our lives until they finally but inevitably end. And even if we resist temptation—even if we could be as sinless as Christ Jesus—sin is so toxic other people’s sins will kill us, same as they did Jesus.

But when Christians read John’s passage about sinning to death (KJV “sin unto death”) what we tend to think of is the Roman Catholic idea of a peccatum mortale, mortal sin—a sin which is so offensive to God, committing it the same as apostasy: We effectively just told God “I’m not following Jesus; I prefer hell.”

Now, Catholics believe—same as most Evangelicals, including me—God can and does forgive all. If you commit a mortal sin, you don’t have to end up in hell; you can repent. So do! Murder may be a mortal sin, but Moses murdered an Egyptian slaveowner, David murdered Uriah, and Paul probably murdered Christians before he became one; all of ’em repented. (Well, maybe Moses repented. Bible doesn’t say.) But if you never repent—if you murdered someone, and if you could redo everything, would totally murder ’em again—Catholics are entirely sure you’re going to hell. Because a real Christian would realize they were wrong, feel sorry for it, and be repentant.

How do Catholics determine what’s a mortal sin, and what’s a non-mortal (i.e. easily forgivable, dismissible, venial sin)? Usually it’s by degree. If popular Christian culture considers it especially bad, and enough Catholic leaders and theologians have denounced it as something that’d particularly get in the way of our relationship with God—if it’s a serious violation of his will—it’d be a mortal sin. It’s not that venial sins don’t degrade our relationship with God, especially when we continually commit ’em. But mortal sins are figured to have effectively broken it off immediately.

You want a list? Most people who ask me about this want a list. Here ya go.

• APOSTASY, obviously. Quitting Jesus definitely won’t get you into his kingdom.
• ADULTERY. Not as the Old Testament describes it, i.e. sex with women outside your patriarchal fiefdom, whereas any non-relatives within your fiefdom are fair game. Nope, Catholics define this as any non-marital sexual activity. Which includes divorce, homosexuality, incest, masturbation, polygamy, porn, prostitution, and rape.
• ANGER, ENVY AND HATRED. Particularly to a degree where people take harmful action, like terrorism.
• BLASPHEMY, by which they mean disrespecting God, not just slander against God. So this’d include using God’s name as a profanity, sacrilege, and skipping Mass.
• CHEATING AND FRAUD. Unless we’re talking harmless frauds like pranks, this refers to anything which harms others, like unfair bets, stuff which endangers others’ lives, injustice, lying, perjury, unfair wages, unjust prices, or oppressive interest rates.
• HERESY. Teaching other than, or sowing doubts in, what Christians oughta believe. This includes encouraging people to defy church leadership, church splits, idolatry, simony, sorcery, and trying to be simultaneously Catholic and another religion. Catholics also include Freemasonry—in part ’cause Masons have historically been anti-Catholic, and in part ’cause Masonic rituals like to dabble in pagan, magic, and Muslim iconography, which creeps Catholics out.
• MURDER of various sorts; anything which intentionally kills another person. This’d include abortion, euthanasia, and suicide. Catholics also include contraception.
• SUBORNATION, i.e. getting someone to sin for you, or otherwise encouraging another person’s sins and vices. Likewise gossip, scandal-mongering, or other such things which nudge others the wrong way.

All these things are forbidden, or implied to be forbidden, in the scriptures. You notice many of ’em are taken from the Ten Commandments. So obviously we should resist any temptation to slide into ’em.

Does sin undo our salvation?

The big problem with the idea of mortal sins, is its logical conclusion: If certain sins cut us off from God’s grace, and we never repent, nor have the chance or means to repent… it means if we die with a mortal sin on our souls, we’re not saved. We’re not forgiven, not getting into God’s kingdom, not getting eternal life. Sin unsaves us.

Is that how God’s grace works? No. But Catholics have a slightly different idea of how grace works.

As Evangelicals like me understand it, grace is God’s generous attitude towards his people. That’s why it’s unlimited, just like its giver. But lots of people treat grace as a substance, a liquid God pours out on us, a pixie dust he sprinkles upon us, or a blanket he covers us with; an object not an attitude. And if it’s a substance, it’s a finite substance: It’s not unlimited. There’s only so much of it God’s printed out, and gonna distribute to people. So don’t push him!—or he’ll favor someone else.

For Catholics, God gives people all sorts of grace, in all sorts of ways. But he particularly grants us grace through his sacraments. That’s why we gotta do them! Go to church and have holy communion every week—every day if possible—because you need to stay connected to Jesus, and that’s the easiest way to do it. And in response God will dole out more grace. So if you’re feeling low on grace, go to church!

Now yeah, if you go to church you’re certainly gonna notice God’s grace a lot more than in most places. But God’s grace isn’t something he only grants when people are religious. On the contrary: God’s grace is all the more for people who aren’t religious. Sinners can’t be saved unless God finds us, comes and gets us, forgives us, and brings us into his kingdom! And does God go and get ’em because they go to church and participate in sacraments? Nope; he went and got us because he loves us. Loved us before we made any effort to follow him; loved us before we repented of our awful, sinful behavior; loved us before we even knew we needed grace. Loves us in spite of many of us not entirely understanding what grace is.

Loves us in spite of those mortal sins. Wants to save us anyway. Isn’t giving up on us, but the Holy Spirit continues to prod us in the conscience so we’ll wise up and repent. That’s grace.

Romans 5.20-21 NABRE

20B …but, where sin increased, grace overflowed all the more, 21 so that, as sin reigned in death, grace also might reign through justification for eternal life through Jesus Christ our Lord.

So does sin, any sin, cut us off from grace and salvation? Only apostasy. Only intentionally quitting Jesus. Properly that’s how blasphemy of the Holy Spirit works—we deliberately cut himself off from him and his guidance, and refuse to follow him further. Rejecting God is the only way we “lose” his salvation. Which means we gotta mean to do it. It’s not accidental! You’re never gonna stumble into losing your salvation; you can only willfully reject it.

(Or, as is the case with pagans who believe they’re Christian, never have it to begin with. They still need to repent, and actually follow Jesus instead of only following the trappings of Christianity which they like best. But they merit their own article.)

So what’s John talking about?

If John didn’t mean to create this whole designation of “mortal sin,” describing sins that’d send us to hell as opposed to venial sins God can easily forgive, what was he really writing about? For that, we gotta look at John’s culture, not ancient Christian culture nor medieval Roman Catholic culture. John grew up Pharisee.

The Pharisees identified two categories of sin in the Law—all of which God forgives, but all of which still had consequences. For most of ’em, like killing a neighbor’s animal, the consequence was restitution for the sin against one’s neighbor, and ritual sacrifice for the sin against God. And for many of ’em, like killing a neighbor, the consequence was death.

Yep. That’s what John meant by “sinning to death”: Violations of the Law which merited the death penalty.

The United States has such laws too. Largely we’ve limited them to murder, terrorism, and treason. The Law in the scriptures executed people for stuff we’d never execute people over, like breaking Sabbath. Its list of mortal sins is a lot larger than the Catholics’ list—and includes much different things. Anger’s not a mortal sin in the Law. But these things are:

• Not properly penning an ox, so that it broke out and killed someone.
• Interfering with temple ritual, or the Levites and priests who do it.
• Priests being drunk on the job.
• Going to temple while ritually unclean.
• Kidnapping.
• Hitting or cursing your parents.
• Bestiality.
• False prophecy, promoting other gods, or spiritualism.

Stuff American culture won’t kill you over—but ancient cultures would and did. Whether you repented or not.

Naturally, many ancient Christians didn’t bother to study the Law, had a lot of biases against the things they considered sinful, and decided it wasn’t too huge of a leap between stuff which got you capital punishment, and things which might endanger your eternal life. Plus threatening people with hellfire goes a lot further when you’re trying to get ’em to stop sinning.

But yeah, it’s wrong. John wasn’t writing about stuff that might put you in hell. Just sins people commit which, in context, are serious crimes. Read it again; I translated it with this idea in mind.

1 John 5.15-17 KWL

15 Once we’ve known God hears us about whatever we may ask,

we’ve known we have the requests we ask of him.

16 When anyone sees their fellow Christian sinning a non-felonious sin,

they’ll ask, and God’ll give life to that person—

to those who commit non-felonious sin.

There’s felonious sin.

I say this so you’d ask, but not about that.

17 Everything immoral is sin—

and includes non-felonious sin.

If the sins they commit are things they really oughta go to prison for, like fraud and thievery and molestation, or even treason and murder, we can’t only pray about it, and figure that’s that. We need to get authorities involved. John wasn’t writing about felonious behavior, but sins between us and God, stuff where authorities don’t need to be involved, and hopefully we have the sense to know the difference.

And regardless of the sins, God can and will forgive all. So relax.