Book of Ben Sira the Wise 1, 1-8
Si 1, 1-8 : ALL WISDOM comes from the Lord, and abides with him forever. The sand of the seas, the drops of rain, and the days of eternity, who can count them? The height of heaven, the breadth of earth, the depth of the abyss, who can estimate them? Wisdom was created before all things, and the depth of intelligence has always been there. The source of wisdom is the word of God in the highest heaven. Its paths are the eternal commandments. The root of wisdom, who has had the revelation, and its subtleties, who has had the knowledge? The science of wisdom, to whom was it manifested, and who profited from its great experience? There is but one wise and most formidable being, He who sits on His throne. He is the Lord (...).
Book of Isaiah, 6, 6-7
Is 6, 6-7 : One of the seraphim flew to me, holding a burning coal which he had taken with tongs from the altar. He brought it close to my mouth and said, "This has touched your lips, and now your fault is removed, your sin is forgiven."
A prophet commissioned to speak the words that the Word (...) inspired in him, i.e. Isaiah, as we see in Isaiah 6:6-7. This fact is cited several times in "The Gospel as it was revealed to me", whether in direct form (as here and, for example, in EMV 166.8 and EMV 626.2) or indirectly (as in EMV 364.8). But it is above all the Messianic prophecies that are recalled (see notes at EMV 561.11 and EMV 577.4).