Well maybe they don’t.Humans even after Adams sin still have a basic understanding of right and wrong.
Romans 3:20 kjv
20. Therefore by the deeds of the law there shall no flesh be justified in his sight: for by the law is the knowledge of sin.
The law is a schoolmaster till Christ is revealed.
Galatians 3:24 kjv
24. Wherefore the law was our schoolmaster to bring us unto Christ, that we might be justified by faith.
John the Baptist used the law to preach repentance, which is the knowledge of sin.
While in sin we are blind to our sins.
The gentile deeper knowledge of sin comes from the law being written in our hearts and minds. Not from the letter of Moses law but the new heart of flesh being given to us.
Man tries to take credit for having a good heart.
But
Jeremiah 17:9 kjv
9. The heart is deceitful above all things, and desperately wicked: who can know it?
Oh but I know it. Really? Are you sure? The scripture surely seems to not agree.
We all learn that, the fuzzy feeling can be a lie.
Mississippi redneck
eddif