First of all, Jesus talked about people who sin going to Hell. That’s what “mortal sin” IS—the kind of sin that causes people to go to Hell.
//////////////////////////////////////////
I read the article.
Is there a kind of sin that doesn’t send you to hell? And specifically where in the New Testament does Jesus differentiate?
Jesus took care of the hair splitting when He said that lust was adultery and hatred was murder.
Humans like to classify them differently, thinking there’s some credit due people for not acting on the sin, but since God sees the heart, He sees the sin anyway.
The only reason I can see why people like to think that their sin is less bad is that they somehow think that they’re then less likely to end up in hell.
Matt 5:9, Matt 5:28 ff.