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:
6. Then flew one of the seraphim to me. The Prophet shows what kind of relief was brought to him, when he was so terrified as to think that he was a dead man; and this confirms what we have already said, that purity of lips comes from God alone; for men can produce nothing of themselves but what is filthy and abominable.
Isaiah cried out in terror not because he was blessed but because he stood guilty. A man of unclean lips cannot endure the presence of the Holy King without knowing himself undone, and he rightly trembled at the justice of God.
AI summary
Commenting on Isaiah 6:5-8
Then flew one of the seraphim unto me,.... When the prophet had confessed his sin; for upon that follows the application of pardon; and when the seraph, or minister of the Gospel, had an order from the Lord to publish the doctrine of it: it is God's act alone to forgive sin; it is the work of his ministers to preach forgiveness of sin, and...