Gregory the Great, on Isa 10:21

“The remnant shall be converted, the remnant, I say, of Jacob, to the mighty God.”

“But yet grace from above sometimes looks upon these mighty men, and afflicts them by the very employments caused by their abundant goods, and intersperses with their prosperity, adverse, but profitable, tribulations: in order that, when sorrowful, they may turn to their heart, and learn how vainly they are engaged in perishable pursuits. Because the light of truth, which is concealed from proud and overbusied minds, is revealed to the afflicted and humbled. For light approaches, when the afflicted mind discerns the gloom of tribulation which it is enduring from perishable pursuits: for, if it had not some perception of the light within, it would not even see that it had lost the light. But this can be specially understood also of the Jews, who dared for this reason to speak against our Redeemer, coming in the flesh, because they were mighty in their own thoughts. But the light was hid from these mighty men; because, while they are persecuting in their pride the light of truth, they lost it. But because they are to be admitted to the faith at the end of the world, it is rightly subjoined, And ordereth it to return again. Whence also it is said by Isaiah, If the number of the children of Israel shall be as the sand of the sea, a remnant shall be saved. For the light then returns to them when they themselves return to confess the power of our Redeemer.”

Imported from an open dataset — not yet checked against the printed edition.