Of all of Paul's letters, Romans is the most immersed in the Old Testament.
Romans declares that God’s promises are fulfilled in Jesus. David G. Peterson situates Romans within the grand redemptive story of the Old Testament: creation, fall, Israel, exile, and promised redemption in the Messiah. Peterson reads Romans as Paul’s exposition and defense of the gospel and highlights its unique theological insights into the Trinity, righteousness and justification, Israel and the church, apostolic ministry, and true worship and holy living.