Then one of the seraphim flew to me, having in his hand a burning coal that he had taken with tongs from 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...