See here, 1. The benefit of wisdom and consideration: A prudent man, by the help of his prudence, will foresee an evil, before it comes, and hide himself; he will be aware when he is entering into a temptation and will put on his armour and stand on his guard. When the clouds are gathering for a storm he takes the warning, and flies to the name of the Lord as his strong tower. Noah foresaw the deluge, Joseph the years of famine, and provided accordingly. 2. The mischief of rashness and inconsideration. The simple, who believe every word that flatters them, will believe none that warns them, and so they pass on and are punished. They venture upon sin, though they are told what will be in the end thereof; they throw themselves into trouble, notwithstanding the fair warning given them, and they repent their presumption when it is too late. See an instance of both these, Exo 9:20, Exo 9:21. Nothing is so fatal to precious souls as this, they will not take warning.

A prudent man foreseeth the evil, and hideth himself,.... A wise man, whose eyes are in his head, who looks about him and before him, and is cautious and careful of his conduct and behaviour; he foresees the evil of sin he is liable to be drawn into by such and such company, snares, and temptations; and therefore he keeps from them, and abstains from all appearance of evil, or what would lead him to it; and he foresees the evil of punishment, or the judgments of God that are coming on for sin; and he betakes himself to the Lord, to those hiding places and chambers of retreat and protection he has provided for his people, till the indignation be overpast; see Isa 26:20;

but the simple pass on, and are punished: foolish persons, devoid of the grace of God and the fear of him, go on careless and unconcerned in their sinful course of life, transgressing the law of God; they proceed from evil to evil, from lesser to greater sins; they go on in the broad road to destruction, and are punished with temporal judgments here, and with everlasting destruction hereafter.

are punished--that is, for their temerity; for the evil is not necessarily punitive, as the prudent might otherwise be its objects.