Sin

I reject the biblical concept of sin, but if I have to name a few, they would be

Voluntary wilfil ignorance - that's a sin.

Letting fear prevent you from understanding reality - that's a sin.

Limiting the rights and freedoms of others in order to make them abide by your standards - that's a sin.

Sacrificing the mental and emotional wellbeing of a child in deference to your religion - that's a sin.

Wasting the one and only life you're going to have worrying about and worrying for an afterlife somebody told you might be there - that's a sin.