Legalism, liberalism and religion. I could also toss in penance. All false beliefs created by man to keep men in bondage. Why? In Christ has occurred the divine exchange. Christ took our Sin Nature and gave us His righteousness (2 Corinthians 5:21). Bondage with the gift we receive from our father Adam. Through the First Adam sin (Sin Nature) entered the world and death through the Sin Nature. Freedom is a gift we received in Christ. Outside of Christ is nothing but bondage though the world may think it's freedom but each one is trapped in sin. Walking dead men or non-life. The Law of Biogenisis states that only life can produce life, thus non-life cannot produce life. In the same way we have The Law of Spiritual Biogenisis. Only Life can produce life. Only Christ who is Eternal Life can produce life. Thus when we died with Christ the life we now have is Christ's life living within. Our non-life has been replaced by Christ's eternal life.