Our sin nature will always be a force in our lives. It will always want to push us into doing the things we know are wrong even when we know the potential to hurt us. In Romans 7:15 Paul says I do not understand what I do. For what I want to do I do not do, but what I hate I do. Without the power of the Holy Spirit in us to change, and the grace of God through Jesus Christ, we would forever face a losing battle. Praise God for showing us grace and giving us a a path to salvation.