Commentators explain that Sennacherib's boast is a classic example of human pride defying God. He credits his own military might ('my chariots') for his ability to conquer even the most difficult terrain, like the mountains of Lebanon. As John Calvin notes, using servants to deliver this boast adds insult to injury, showing deep contempt. This serves as a timeless warning against self-reliant arrogance that forgets God's sovereignty.