Catena Fidei

Isaiah 6:7 (WEB)
He touched my mouth with it, and said, “Behold, this has touched your lips; and your iniquity is taken away, and your sin forgiven.”

Fathers and councils · 6

Gregory of Nyssa, Against Eunomius I.22Book I
“In the same way there are included in the list Isaiah’s Seraphim, by whom the mystery of the Trinity was luminously proclaimed, when they uttered that marvellous cry “Holy,” being awestruck with the beauty in each Person of the Trinity.” — editor's note: Isaiah vi. 6, 7.
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John Cassian, Conferences XVIII–XXIV XXIII.17Conference XXIII
“And he touched my mouth and said: Lo, with this I have touched thy lips, and thine iniquity is taken away and thy sin is purged,” is just what seems to have fallen from the mouth of Paul, who says: “Thanks be to God through Jesus Christ our Lord.”” — editor's note: Isa. vi. 6, 7.
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Ambrose of Milan, Exposition of the Christian Faith I.21Book I
“But forasmuch as then the Seraph came down in a vision to the Prophet, whilst Thou, O Lord, in revelation of the mystery hast come to us in the flesh, do Thou, not by any deputy, nor by any messenger, but Thou Thyself cleanse my conscience from my secret sins, that I too, erstwhile unclean, but now by Thy…” — editor's note: St. Ambrose contrasts the appearance of the Seraph to Isaiah in a vision with our Lord’s appearance to men in everyday life, in the flesh, see Is. vi. 6, 7,…
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Ambrose of Milan, On the Holy Spirit I.10Book I
“But perhaps some one will say that the Seraph said to Isaiah: “Behold, this hath touched thy lips, and shall take away thine iniquities, and purge away thy sins.”” — editor's note: Is. vi. 7.
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Gregory of Nazianzus, Orations Oration 2
“…very far from speaking comfortably to Jerusalem, according to the reproaches and protests urged by Isaiah, who was purged by the Seraphim with a live coal.” — editor's note: Ib. vi. 6, 7.
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Ephrem the Syrian, Three Homilies Homily 1
“And the Nature which none can handle, clothed Itself in a body, altogether in order that all lips might kiss His feet as the sinful woman did.” — editor's note: Is. vi. 7.
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