4 But what and how great is the patience in God, that, most patiently enduring the profane temples and the images of earth, and the sacrilegious rites instituted by men, in contempt of His majesty and honour, He makes the day to begin and the light of the sun to arise alike upon the good and the evil; and while He waters the earth with showers, no one is excluded from His benefits, but upon the righteous equally with the unrighteous He bestows His undiscriminating rains.
We see that with undistinguishing equality of patience, at God's behest, the seasons minister to the guilty and the guiltless, the religious and the impious— those who give thanks and the unthankful; that the elements wait on them; the winds blow, the fountains flow, the abundance of the harvests increases, the fruits of the vineyards ripen, the trees are loaded with apples, the groves put on their leaves, the meadows their verdure; and while God is provoked with frequent, yea, with continual offenses, He softens His indignation, and in patience waits for the day of retribution, once for all determined; and although He has revenge in His power, He prefers to keep patience for a long while, bearing, that is to say, mercifully, and putting off, so that, if it might be possible, the long protracted mischief may at some time be changed, and man, involved in the contagion of errors and crimes, may even though late be converted to God, as He Himself warns and says, “I do not will the death of him that dies, so much as that he may return and live.” And again, Return unto me, says the Lord. And again: “Return to the Lord your God; for He is merciful, and gracious, and patient, and of great pity, and who inclines His judgment towards the evils inflicted.” Which, moreover, the blessed apostle referring to, and recalling the sinner to repentance, sets forward, and says: “Or do you despise the riches of His goodness, and forbearance, and long-suffering, not knowing that the patience and goodness of God leads you to repentance? But after your hardness and impenitent heart you store up unto yourself wrath in the day of wrath and of revelation of the righteous judgment of God, who shall render to every one according to his works.” He says that God's judgment is just, because it is tardy, because it is long and greatly, deferred, so that by the long patience of God man may be benefited for life eternal. Punishment is then executed on the impious and the sinner, when repentance for the sin can no longer avail.
Source: The Treatises of Cyprian (New Advent)