That the believer is amended and reserved
In the cxviith Psalm: “The Lord amending has amended me, and has not delivered me to death.” Also in the eighty-eighth Psalm: “I will visit their transgressions with a rod, and their sins with scourges. But my mercy will I not scatter away from them.” Also in Malachi: “And He shall sit melting and purifying, as it were, gold and silver; and He shall purify the sons of Levi.” Also in the Gospel: “You shall not go out thence until you pay the uttermost farthing.”
Source: The Treatises of Cyprian (New Advent)