Gregory the Dialogist

For He doth not now bring on His fury, nor severely punish wickedness. For God in truth bears a long while with him, whom He condemns for ever; and forbears now to bring on His wrath, because He reserves it to be poured forth, hereafter, without end. For suffering is here the portion of the Elect, in order to their being trained for the rewards of their heavenly inheritance. It is our portion to receive stripes here, for whom an eternity of joy is reserved. For hence it is written, He scourgeth every son whom He receiveth. [Heb. …

Morals on the Book of Job, Book XXVI ↗

Thomas Aquinas

And Eliud adds, "For now," in the present life, "he does not unleash his fury," the great extent of his punishment, "nor does he take great vengeance on a crime," i.e. he does not punish in the present according to which the gravity of fault demands. For the punishments of the present life are for correction and therefore he reserves for future damnation those whom he judges unworthy of correction. This is another reason why the wicked prosper in this world and he agrees with the opinion of Job about this.

Commentary on Job ↗