The Gospel answers all the shortcomings of my conscience as to what is good and bad, right and wrong, etc. and how to live life to have everlasting life.
Yes, I always refer to Romans 2 as St. Paul refers to the conscience & disposition of the individual. I think the Lord tells us to carefully heed His words in Matthew 7:15-23 ( for ex.). I do not assume to be saved and another to not be saved.
I mean I struggle to keep the Lord’s commandments ( for ex. Romans 13:8-10) in living daily life ( I mean I am not plundering & pillaging but as far as disposition etc.)Other people of all kinds of beliefs have a better disposition to do this & others do not. The thing is as a Christian, if I am truly repentant, to the moment of death I can recall the thief on the cross next to the Lord ( Luke 23:38-43). I do not mean that I refer to the Lord’s mercy as some cheap insurance policy in this matter though.