Lamentations 3:31

That all sins may be forgiven him who has turned to God with his whole heart... "The Lord will not reject forever; and when he has made low, he will have pity according to the multitude of his mercy. Because he will not bring low from his whole heart, neither will he reject the children of humankind."

But all those who call their lands by their own names and have wood and hay and stubble in their thoughts; such as these, since they are strangers to difficulties, become aliens from the kingdom of heaven. Had they however known that "tribulation perfects patience, and patience experience, and experience hope, and hope makes not ashamed," they would have exercised themselves, after the example of Paul. He said, "I bring my body into subjection, lest when I have preached to others, I myself should be a castaway."

The divine mercy regarding relaxation of punishments is displayed. First is considered an absolution from penalties: "For the Lord will not cast off forever." Since, the Lord does not forever punish. Because Psalm 94:14 claims: "For the Lord will not forsake his people; he will …

Therefore the sufferer is thus penitent, thus patient, because he believes that God is gracious and merciful, which is the great inducement both to evangelical repentance and to Christian patience.

For the Lord will not cast off for ever. Which is not to be understood of all his creatures; for there are some he does cast off for ever, as the angels that sinned; reprobate men, profligate and abandoned sinners, that live and die impenitent; and unbelievers, carnal professors, and apostates; but not his own special and peculiar people, the people whom he has foreknown and loved with an everlasting love, his spiritual Israel; or, as the Targum supplies it, "his servants"; see Psa 94:14; he may seem for a while to reject them, but not in reality and for ever; as when he hides his face from them, lays his afflicting hand on them, or suffers then, to be afflicted by others, and defers his help, and does not immediately appear to their deliverance and salvation; but in reality he never rejects them from being his people, his servants, and his sons; they have always a place in his heart, and are ever under his eye and care; they continue in his covenant, and abide in his family; and though they may be cast down in their souls, and cast out by men, yet are not cast off by God, neither in youth nor old age, in time or eternity; his love is unchangeable; his purposes firm and unalterable; his counsel, covenant, oath, and promise, immutable; and they are his jewels, his portion, and inheritance; and this is a ground and reason of bearing patiently all afflictions, injuries, and reproaches; for though men cast off, God will not.