Catena Fidei

Psalm 82:5 (WEB)
They don’t know, neither do they understand. They walk back and forth in darkness. All the foundations of the earth are shaken.

Fathers and councils · 6

Gregory of Nyssa, Against Eunomius X.4Book X
“But “they knew not nor understood,” says David of those that “walk on still in darkness.”” — editor's note: Cf. Ps. lxxxii. 5.
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Gregory of Nyssa, Letters Letter 17
“Well, seeing that our humanity was in darkness, as it is written, “They know not, neither will they understand, they walk on in darkness,” the Illuminator of this darkened world darted the beam of His Divinity through the whole compound of our nature, through soul, I say, and body too, and so…” — editor's note: Ps. lxxxii. 5.
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Augustine of Hippo, Expositions on the Psalms Psalm 82
“To all of them, verily, what follows is most fitly suited: “They did not know nor understand, they walk on in darkness” (ver. 5).” — the author cites it
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Athanasius of Alexandria, Festal and Personal Letters Personal Letters.15Personal Letters
“But since, instigated by their father the devil, ‘they knew not nor understood,’ as it is written, ‘but go on still in darkness,’ let them learn from your piety that this error of theirs belongs to Valentinus and Marcion, and to Manichæus, of whom some substituted [the idea of]…” — editor's note: Ps. lxxxii. 5.
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Cyprian of Carthage, Three Books of Testimonies Against the Jews I.4Book I
“Also in the eighty-first Psalm: “They have not known, neither have they understood; they shall walk on in darkness.”” — editor's note: Ps. lxxxii. 5.
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Cyprian of Carthage, Three Books of Testimonies Against the Jews II.7Book II
“Also in the eighty-first Psalm: “They have not known, neither have they understood: they will walk on in darkness.”” — editor's note: Ps. lxxxii. 5.
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