April, sin is anything unrighteous, unholy. God is Holy.so the two can't coexist without one being destroyed. We are unholy, because we've all sinned. Sin equals spiritual death or separation from God.Hell. Its not God sending us to Hell, but sin. Its a law. It happens all by itself. That's why we need to be made holy. The only way is by covenant.Jesus gets our unrighteousness we get His righteousness. Swap by marriage covenant.