The stones - the place of sapphires - In the language of mineralogists, the gangue, matrix, or bed in which the sapphire is found. For a description of this stone, see on Job 28:16 (note).

Dust of gold - Or rather, gold dust.

sapphires

Job 28:16 It cannot be valued with the gold of Ophir, with the precious onyx, or the sapphire.

Exodus 24:10 And they saw the God of Israel: and there was under his feet as it were a paved work of a sapphire stone...

Songs 5:14 His hands are as gold rings set with the beryl: his belly is as bright ivory overlaid with sapphires.

Isaiah 54:11 O you afflicted, tossed with tempest, and not comforted, behold, I will lay your stones with fair colors...

Revelation 21:19 And the foundations of the wall of the city were garnished with all manner of precious stones. The first foundation was jasper...

dust of gold. or, gold ore

The Hidden Path
"There is a path which no fowl knoweth, and which the vulture's eye hath not seen."--Job xxviii. 7. T. P. tr., Emma Frances Bevan, 1899 One place have I in heaven above The glory of His throne-- On this dark earth, whence He is gone, I have one place alone, And if His rest in Heaven I know, I joy to find His path below, We meet to own that place alone Around the broken bread-- The dead whose life is hid with Christ Remembering Jesus dead. For us has set the earthly light, Above, the glory; here, …
Frances Bevan—Hymns of Ter Steegen and Others (Second Series)

Whether Wisdom Should be Reckoned among the Gifts of the Holy Ghost?
Objection 1: It would seem that wisdom ought not to be reckoned among the gifts of the Holy Ghost. For the gifts are more perfect than the virtues, as stated above ([2705]FS, Q[68], A[8]). Now virtue is directed to the good alone, wherefore Augustine says (De Lib. Arb. ii, 19) that "no man makes bad use of the virtues." Much more therefore are the gifts of the Holy Ghost directed to the good alone. But wisdom is directed to evil also, for it is written (James 3:15) that a certain wisdom is "earthly, …
Saint Thomas Aquinas—Summa Theologica

"But Seek Ye First the Kingdom of God, and his Righteousness, and all These Things Shall be Added unto You. "
Matth. vi. 33.--"But seek ye first the kingdom of God, and his righteousness, and all these things shall be added unto you." The perfection even of the most upright creature, speaks always some imperfection in comparison of God, who is most perfect. The heavens, the sun and moon, in respect of lower things here, how glorious do they appear, and without spot! But behold, they are not clean in God's sight! How far are the angels above us who dwell in clay! They appear to be a pure mass of light and …
Hugh Binning—The Works of the Rev. Hugh Binning