Jerome — on Isa 6:6 (Commentary on Isaiah)

“(Verse 6) And one of the Seraphim flew to me, and in his hand was a live coal which he had taken with tongs from the altar, and he touched my mouth, and said: Behold, this has touched your lips, and your iniquity shall be taken away, and your sin be cleansed. He flew, or rather, one of the Seraphim was sent, the name of which means burning, in order to cleanse the impure lips of the Prophet with a fiery coal which he had taken from the altar. However, many believe that there are two Seraphim, because one was calling to the other, even though each individual could call out to the others; and the Septuagint edition suggests that there were actually many, who were interpreted as Seraphim, standing around him. And if it were spoken about two things, they would not have spoken in a circle, but they would have spoken from both sides. And this applies to the multitude of angels, which is prepared for the ministry of God. But the Seraphim are called in the plural number, and in the singular, Seraph; just as the Cherubim are called Cherub. But as for the altar under which the souls of the martyrs are seen in heaven, John speaks of it in the Apocalypse (Rev. 6); and this stone, which is interpreted as 'LXX coals of fire,' that is, a carbuncle, may not signify coal or charcoal, as many think, but a carbuncular stone, which is called fiery because of its flame-like color. From this we understand that the altar of God is filled with carbuncles, that is, fiery stones and embers, which cleanse sins. Hence we read in the Scriptures about God: Coals were kindled by Him (Psalm 18:9). And it is said of the Lord Himself that He is a consuming fire. And the Savior in the Gospel says: I have come to cast fire upon the earth (Luke 12:49), to baptize in the Holy Spirit and fire. For the fire will test the quality of each one's work (1 Corinthians 3). And he who is to be saved will be saved as if he passed through fire. And it should be noted that to Jeremiah, to whom it was said: Before I formed you in the womb, I knew you, and before you were born, I sanctified you (Jeremiah 1:5), because he did not have unclean lips, but had only said: I do not know how to speak, because I am young, the Lord himself stretched out his hand, and touched his mouth, and said: Behold, I have put my words in your mouth. Moreover, to Isaiah who said, 'I am a man with unclean lips, and I dwell in the midst of a people with unclean lips,' the hand of God is not extended, but a Seraphim is sent by God, or flies of its own accord, because it is entrusted with this task. And in its hand it holds a coal, which according to the Septuagint and Theodotion, is grasped with tongs; according to Aquila and Symmachus, who have followed the Hebrew, with forceps it grasps, that is, 'he cleanses his iniquities,' so that it may touch his mouth and purify his ancient sins. However, it is the hand that is sent from God and the Seraphim, so that the Prophet, seeing a member of his own body, is not frightened by external touch. Some of our people consider the forceps, with which a stone is grasped, to be the two Testaments, which are united by the union of the Holy Spirit. But because the Lord is introduced as sitting, and sitting in the Temple, and the house is filled with smoke, as the Jews think, of incense; consequently, forceps are also mentioned, which we read about in the priestly ministry (Exodus 37).”