In traditional catechisms, there is a sharp distinction between mortal sins and venial sins. Mortal sins make the sinner subject to the punishments of hell, and venial sins do not. Some sins are mortal by their very nature, and some sins are not. Some species of sin depend upon parvity of matter — for instance, stealing a large amount is mortally sinful, but stealing a trivial amount, in and of itself, is not. And of course there are the other two conditions — sufficient reflection (“did you know enough about the sin to understand that it is mortal?”) and full consent of the will (“did you have anything within yourself that impaired your will, consciousness, or mental faculties at the time you committed the sin?”).
How did this distinction come about? I ask in part because, as I understand it, Eastern Christians do not necessarily make this dichotomy — their distinctions between various types of sin are fuzzier and more subjective. There has also been the modern tendency in Western Catholicism to refer to “grave” sin, “serious” sin, and so on. I’m not necessarily suggesting that anyone is doing this, but I have to wonder sometimes, if we are on a slippery slope towards saying that some sins, particularly those where an entire lifestyle is involved (contraception, divorce and remarriage without annulment, being an active homosexual, etc.), are “grave but not mortal”. This way, the sinner could continue with their lifestyle, receive communion, possibly not even bring the sin up in confession, because, using this reasoning, they are not going to hell. Serious purgatory time, maybe. Hell, no.
How did this distinction come about? I ask in part because, as I understand it, Eastern Christians do not necessarily make this dichotomy — their distinctions between various types of sin are fuzzier and more subjective. There has also been the modern tendency in Western Catholicism to refer to “grave” sin, “serious” sin, and so on. I’m not necessarily suggesting that anyone is doing this, but I have to wonder sometimes, if we are on a slippery slope towards saying that some sins, particularly those where an entire lifestyle is involved (contraception, divorce and remarriage without annulment, being an active homosexual, etc.), are “grave but not mortal”. This way, the sinner could continue with their lifestyle, receive communion, possibly not even bring the sin up in confession, because, using this reasoning, they are not going to hell. Serious purgatory time, maybe. Hell, no.