Matthew Henry's Concise Commentary

3:37-41 While there is life there is hope; and instead of complaining that things are bad, we should encourage ourselves with the hope they will be better. We are sinful men, and what we complain of, is far less than our sins deserve. We should complain to God, and not of him. We are apt, in times of calamity, to reflect on other people's ways, and blame them; but our duty is to search and try our own ways, that we may turn from evil to God. Our hearts must go with our prayers. If inward impressions do not answer to outward expressions, we mock God, and deceive ourselves.