Of the Way to Attain Divine Union
... God purifies the soul by His Wisdom, as refiners do metals in the furnace. Gold
cannot be purified but by fire, which gradually separates from and consumes all ...
/.../guyon/a short and easy method of prayer/chapter xxiv of the way.htm

Still, in his Examination of the Amount of Justice and Wisdom ...
... it is as when some worthless material has been mixed with gold, and the gold-refiners
[2004] burn up the foreign and refuse part in the consuming fire, and so ...
/.../gregory/gregory of nyssa dogmatic treatises etc/chapter xxvi still in his.htm

Zechariah 13:9
And I will bring the third part through the fire, and will refine them as silver is refined, and will try them as gold is tried: they shall call on my name, and I will hear them: I will say, It is my people: and they shall say, The LORD is my God.
Topicalbible.org

1 Peter 1:7
That the trial of your faith, being much more precious than of gold that perishes, though it be tried with fire, might be found to praise and honor and glory at the appearing of Jesus Christ:
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Refiners

Refiners Fire

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