Paul explains in Romans 5 - 8what it means to overcome sin and live righteously for Christ in a fallen world and that is only possible through His grace. In chapter 7 and 8, Paul introduces us to four spiritual laws: the Law of God, the Law of Sin and Death, the Law of the Spirit of Life in Christ, which allows us to overcome sin and death, and the Law of the Mindset. Setting our mind on the Law of the Spirit will free us to live righteously as justified people by God's grace.