For when man through repentance has come to the knowledge of himself, he finds nothing but utter despair. Hence, wholly distrusting himself, he is forced to take refuge in the mercy of God. But when he has begun to do that, justice makes him afraid. Then Christ appears, who has satisfied the divine justice for our trespasses. When once there is faith in Him, then salvation is found; for He is the infallible pledge of God’s mercy.
– Ulrich Zwingli