[freedomdefender]

where in the Bible do the terms "venial sin" and "mortal sin" appear? All sin is an abomination. And all sin can be forgiven, when repented. (the "sin against the Holy Spirit" is an exception that I don't understand, admittedly)

[tioga]

Venial sin and mortal sin are taught in the Catholic faith tradition. Venial being minor, mortal more serious. Mortal sin is referring to the death of the soul if it is not repented. I would agree that all sin can be forgiven, when true repentance is present. Jesus will decide.</p>

[newberger]

where in the Bible do the terms "venial sin" and "mortal sin" appear?

Well, I John makes a distinction between a sin "unto death" (mortal) and a sin "not unto death". Using the word venial to mean "not unto death" is simply a one word synonym.

It's a Biblical notion!

[twigs]

where in the Bible do the terms "venial sin" and "mortal sin" appear?

It's not in the Bible; it's a Catholic tradition. My husband is Catholic; I'm not. We have heated--though friendly-- discussions over this a lot.