I understand sin as thoughts and actions that are contrary to God's word. Jesus, Son of God born of a Virgin and without sin was given the task of redeeming lost souls. At one time I was a part of jail ministry team. One of the inmates said he cannot be good enough to be a Christian. No no one can on their own behalf, but, I know this for a fact is after receiving salvation a person changes from within and begins a personal relationship to God. it is not the fear of God that makes me moral instead I prefer not sinning so I remain as close to God as I can possibly be.