If we have never sinned mortally, God's mercy in pardoning us our venial sins is not less. It is always the fruit of Jesus' blood. And then we renew them so often that God has to exercise it incessantly, while the occasions of mortal sin are rarer. Besides, when we sin venially, we are in His friendship, and we afflict His Heart and His love in the tenderest point.
--St. Peter Julian Eymard