The definition of sin is “that which separates you from God”...
Hell is a willful separation from God. His protection is no longer there, hence the evils He normally stands in the way of are gone. This is not God’s decision for humanity, it is an individual decision by each person. God has warned repeatedly and urgently, He sent Jesus to pay the price so we wouldn’t have to. If people do not take that incredible pass, it is on them...not God. God has done all He can to help humanity escape that fate.
Sin separates us from Him, but technically, the definition of sin is to “miss the mark”. In this case, the mark is the Plan of God.
“The definition of sin is “that which separates you from God”...”
Pretty good definition. I use the definition of sin as anything which creates an obstacle to Love in our soul. Which is essentially the same thing.