1. What was God's design in bringing this calamity upon them: it was to humble them, bring them to repentance, and make them serious. In that day of trouble, and treading down, and perplexity, the Lord did thereby call to weeping and mourning, and all the expressions of sorrow, even to baldness and girding with sackcloth; and all this to lament their sins (by which they had brought those judgments upon their land), to enforce their prayers (by which they might hope to avert the judgments that were breaking in), and to dispose themselves to a reformation of their lives by a holy seriousness and a tenderness of heart under the word of God. To this God called them by his prophet's explaining his providences, and by his providences awakening them to regard what his prophets said. Note, When God threatens us with his judgments he expects and requires that we humble ourselves under his mighty hand, that we tremble when the lion roars, and in a day of adversity consider.