1 Many and great, beloved brethren, are the divine benefits wherewith the large and abundant mercy of God the Father and Christ both has laboured and is always labouring for our salvation: that the Father sent the Son to preserve us and give us life, in order that He might restore us; and that the Son was willing to be sent and to become the Son of man, that He might make us sons of God; humbled Himself, that He might raise up the people who before were prostrate; was wounded that He might heal our wounds; served, that He might draw out to liberty those who were in bondage; underwent death, that He might set forth immortality to mortals.
These are many and great boons of divine compassion. But, moreover, what is that providence, and how great the clemency, that by a plan of salvation it is provided for us, that more abundant care should be taken for preserving man after he is already redeemed! For when the Lord at His advent had cured those wounds which Adam had borne, and had healed the old poisons of the serpent, He gave a law to the sound man and bade him sin no more, lest a worse thing should befall the sinner.
We had been limited and shut up into a narrow space by the commandment of innocence. Nor would the infirmity and weakness of human frailty have any resource, unless the divine mercy, coming once more in aid, should open some way of securing salvation by pointing out works of justice and mercy, so that by almsgiving we may wash away whatever foulness we subsequently contract.
Source: The Treatises of Cyprian (New Advent)