There is one case of death-bed repentance recorded, that of the penitent thief, that none should despair; and only one that none should presume.
— Saint Augustine (354-430)
Nothing so moves a sinner to repentance as eternity, and nothing is so useful to every Christian as remembrance and contemplation of eternity. Eternity restrains a man from sin, calms his passions, turns him from the world and all its vanity, makes his heart contrite, gives birth to tears of repentance, incites him to prayer, and works true sighing of the heart.
–Saint Tikhon (1724-1783)
It is customary for those in sorrow or adversity to tear their garments…. I bid you not to tear your garments but rather to rend your hearts which are laden with sin. Like wine skins, unless they have been cut open, they will burst of their own accord. After you have done this, return to the Lord your God, from whom you had been alienated by your sins. Do not despair of his mercy, no matter how great your sins, for great mercy will take away great sins. For the Lord is gracious and merciful and prefers the conversion of a sinner rather than his death. Patient and generous in his mercy, he does not give in to human impatience but is willing to wait a long time for our repentance.
–Saint Jerome (c. 340-420)
If a man has tar on his hands, he removes it with a little cleansing oil; how much more, then, can you be made clean with the oil of God’s mercy. You find no difficulty in washing your clothes; how much easier is it for the Lord to cleanse you from every stain, although you are bound to be tempted every day. When you say to the Lord, ‘I have sinned’, He answers: ‘Your sins are forgiven you; I am He who wipes them out and I will remember them no more’(Matt. 9:2; Isa.43:25); ‘as far as the east is from the west, so far have I removed your sins from you; and as a father shows compassion to his sons, so will I show compassion to you’ (Ps.103:12-13).
–Saint John of Karpathos (Seventh Century)
Beginners in the service of God sometimes lose confidence when they fall into any fault. When you feel so unworthy a sentiment rising within you, you must lift your heart to God and consider that all your faults, compared with divine goodness, are less than a bit of tattered thread thrown into a sea of fire. Suppose that the whole horizon, as far as you can see from this mountain, were a sea of fire; if we cast into it a bit of tattered thread, it will disappear in an instant. So, when you have committed a fault, humble yourself before God, and cast your fault into the infinite ocean of [love] and at once it will be effaced from your soul; at the same time all distrust will disappear.
–Saint Paul of the Cross (1694-1775)
