Isaiah 6:6-7 He laid a live coal on my mouth

 

⁶ Then flew one of the seraphims unto me, having a live coal in his hand, which he had taken with the tongs from off the altar:

⁷ And he laid it upon my mouth, and said, Lo, this hath touched thy lips; and thine iniquity is taken away, and thy sin purged. -Isaiah 6:6-7 Bible, King JamesVersion (KJV)

 

Apocalypse Explained, by Emanuel Swedenborg, [1757-9], tr. by John Whitehead [1911], at sacred-texts.com

 

391.

...[4] ...In the highest sense the Lord Himself is signified by the "altar," for there is nothing holy from any other source. Moreover, all worship is worship of the Lord and from the Lord; and as worship in that church consisted chiefly of burnt-offerings and sacrifices, so the "altar" signified the Divine Itself... and this Divine is the Lord's Divine Human. [7] It was therefore also commanded: That the fire upon the altar should burn continually, and never be extinguished (Lev. 6:12-13); also that from that fire the lamps should be lighted in the tent of meeting, and that they were to take from that fire in the censers and burn incense; for "the fire" signified the Divine love which is in the Lord alone (see above, n. 68). [8] Because "the fire of the altar" signifies the Divine love, the prophet Isaiah was sanctified by it: Then flew one of the seraphim unto me, in whose hand was a burning coal, which he had taken from off the altar, and he touched my mouth, and said, This hath touched thy lips; therefore thine iniquity is taken away, and thy sin is expiated (Isa. 6:6-7). What these words signify in their series can be seen when it is known that "the altar" signifies the Lord in respect to the Divine Human, and "the fire" on it the Divine good of his Divine love; that the prophet's "mouth and lips" signify the doctrine of good and truth; and that "to touch" signifies to communicate; "iniquity which was taken away" signifies falsity, and "sin" evil; for "iniquity" is predicated of the life of falsity, that is, of a life contrary to truths, and "sin" of the life of evil, that is, of a life contrary to good.