I. When they were told how inevitable the judgment would be they pleaded the defence of their politics and powers, which, with the help of their wealth and treasure, they thought made their city impregnable. In answer to this he shows them the folly of trusting to and boasting of all these stays, while they have not a God in covenant to stay themselves upon, v. 23, 24. Here he shows, 1. What we may not depend upon in a day of distress: Let not the wise man glory in his wisdom, as if with the help of that he could outwit or countermine the enemy, or in the greatest extremity find out some evasion or other; for a man's wisdom may fail him when he needs it most, and he may fail him when he needs it most, and he may be taken in his own craftiness. Ahithophel was befooled, and counsellors are often led away spoiled. But, if a man's policies fail him, yet surely he may gain his point by might and dint of courage. No: Let not the strong man glory in his strength, for the battle is not always to the strong. David the stripling proves too hard for Goliath the giant. All human force is nothing without God, worse than nothing against him. But may not the rich man's wealth be his strong city? (money answers all things) No: Let not the rich man glory in his riches, for they may prove so far from sheltering him that they may expose him and make him the fairer mark. Let not the people boast of the wise men, and mighty men, and rich men that they have among them, as if they could make their part good against the Chaldeans because they have wise men to advise concerning the war, mighty men to fight their battles, and rich men to bear the charges of the war. Let not particular persons think to escape the common calamity by their wisdom, might, or money; for all these will prove but vain things for safety. 2. He shows what we may depend upon in a day of distress. (1.) Our only comfort in trouble will be that we have done our duty. Those that refused to know God (v. 6) will boast in vain of their wisdom and wealth; but those that know God, intelligently, that understand aright that he is the Lord, that have not only right apprehensions concerning his nature, and attributes, and relations to man, but receive and retain the impressions of them, may glory in this it will be their rejoicing in the day of evil. (2.) Our only confidence in trouble will be that, having through grace in some measure done our duty, we shall find God a God all-sufficient to us. We may glory in this, that, wherever we are, we have an acquaintance with an interest in a God that exercises lovingkindness, and judgment, and righteousness in the earth, that is not only just to all his creatures and will do no wrong to any of them, but kind to all his children and will protect them and provide for them. For in these things I delight. God delights to show kindness and to execute judgment himself, and is pleased with those who herein are followers of him as dear children. Those that have such knowledge of the glory of God as to be changed into the same image, and to partake of his holiness, find it to be their perfection and glory; and the God they thus faithfully conform to they may cheerfully confide in, in their greatest straits. But the prophet intimates that the generality of this people took no care about this. Their wisdom, and might, and riches, were their joy and hope, which would end in grief and despair. But those few among them that had the knowledge of God might please themselves with it, and boast themselves of it; it would stand them in better stead than thousands of gold and silver.