Precept Upon Precept Inductive Studies . . . Romans Part 1 (14 lessons) - All have sinned. There is none righteous. We are declared righteous by God only by faith in the blood of His Son. Romans 1-5 explains the foundational doctrines of our faith - original sin, justification, redemption, and propitiation. Gain an excellent grasp of the doctrine of salvation! Workbook. German language.