Throughout Romans Paul has been clear that no one is righteous and all are without excuse before God's judgment (1:18-3:20).  The only way to stand righteous before God is by Faith and the Grace of God (3:21-4:25).  
Today Paul reveals the “benefits of belief” which start with having peace with God—As believers we’re now marked by confidence (5:1-8:39).  We have the Prosperity of Peace with God.