Isaiah
Isaiah 6:7BSB·traditional attribution

And with it he touched my mouth and said: “Now that this has touched your lips, your iniquity is removed and your sin is atoned for.”

John Calvin Reformed @genevareformer

7. And applying it to my mouth. And he laid it upon (marg., caused it to touch) my mouth. — Eng. Ver. We see how God condescends to meet the weakness of human sense. He puts the tongs into the hand of a seraph, that by means of it he may take a coal from the altar and apply it to the Prophet’s mouth.

Matthew Henry Presbyterian @wholebiblehenry

Our curiosity would lead us to enquire further concerning the seraphim, their songs and their services; but here we leave them, and must attend to what passed between God and his prophet. Secret things belong not to us, the secret things of the world of angels, but things revealed to and by the prophets, which concern the administration of God's kingdom among men. Now here we have, I.

Commenting on Isaiah 6:5-8

John Gill Reformed Baptist @doctorgill

And he laid it upon my mouth,.... Because he had complained of the impurity of his lips, and that his mouth might take in by faith this comfortable doctrine of pardon, and it might be filled with praise and thankfulness; it denotes the ministration of the Gospel, as a means of the application of pardoning grace: and said, lo, this hath touched thy lips; this...