Knowing what sin really is and that Jesus has defeated it, will set us free. As believers who have been forgiven, restored and made new creations, we still have sin tendency but our sin nature was buried in the waters of Baptism.  We've been made new and our spirit has been connected to God.  Calling sin what is and knowing its power is defeated will set us free from shame, fear and  regret and let us walk in a new way - by the Spirit!