For in it is the righteousness of God revealed from faith to faith: as it is written, The just shall live by faith.
All Commentaries on Romans 1:17 Go To Romans 1
Augustine of Hippo
AD 430
This righteousness is the grace of the New Testament, by which the faithful are just as long as they live by faith, until by the perfection of righteousness they are brought to the facetoface vision, as they are also brought to the immortality of the body itself, by the perfection of salvation.