The Book of Romans makes it clear that it is not by the righteousness of man that one receives the remission of sin, but it is by believing in the righteousness of God that his faith is approved. That is why here in chapter 5 Paul explains that we have peace with God by believing in His righteousness. When God has saved us from our sins through His righteousness, it makes no sense for us not to attain peace by failing to believe in God’s righteousness on our part. The Bible tells us that one is saved from all his sins by believing in God’s righteousness. This is the peace that is obtained when one places his faith in the righteousness of God.

https://www.bjnewlife.org/ 
https://youtube.com/@TheNewLifeMission 
https://www.facebook.com/shin.john.35