Gregory the Dialogist

Yea the Almighty shall be against thine enemies, and thou shalt have heaps of silver. What other enemies are we more subject to than evil spirits, who in our thoughts besiege us, that they may break into the city of our minds, and hold it, taken captive, under the yoke of their dominion? Now by the name of 'silver,' the Psalmist testifies the sacred oracles are denoted, when he says, The words of the Lord are pure words, as silver tried in a furnace of earth. …

Morals on the Book of Job, Book XVI ↗

Thomas Aquinas

He concludes and lists the character of these goods which he promises will be restored to him. He places first security resulting from the protection of God when he says, "The Almighty will fight against your enemies," so that they cannot destroy again what will be restored to you by God. He places second the abundance of riches when he says, "and you will heap up masses of silver." All riches are really meant by the name of silver because money is commonly made from silver.

Commentary on Job ↗