12 Even man has no knowledge of his time; like fishes taken in an evil net, or like birds taken by deceit, are the sons of men taken in an evil time when it comes suddenly on them.

Matthew Henry's Commentary on Ecclesiastes 9:12

Commentary on Ecclesiastes 9:11-12

(Read Ecclesiastes 9:11-12)

Men's success seldom equals their expectations. We must use means, but not trust to them: if we succeed, we must give God the praise; if crossed, we must submit to his will. Those who put off the great concerns of their souls, are caught in Satan's net, which he baits with some worldly object, for which they reject or neglect the gospel, and go on in sin till they suddenly fall into destruction.