Commentary on Job, part 16

We get more allegorical readings of precious substances in the next fragment:

“Its stones are the place of sapphires and its dust gold for him.” (28:6)
 You will understand this verse according to the earlier verse concerning precious stones. The intelligent [reader] will understand the Holy Spirit's powerful relic, the Theotokos, as Jeremiah says: “Her Nazarites were made purer than snow, they were whiter than milk” (Lamentations 4:7). And gold dust is the holiness of the body, as he says: “Holy is your temple, wondrous in righteousness” (Psalm 64:4-5). And also those purified of this earthen nature shine brightly with virtue and become a place of the word of truth. This is why the prophet says: “Holy stones shall roll on the land” (Zechariah 9:16), meaning the turning of stones.