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John Gill
A prudent [man] foreseeth the evil,.... [See comments on Proverbs 22:3]; or "seeth the evil" (f); the evil of sin, as it is contrary to the nature, will, and law and abominable in his sight; and not only the evil of gross actions of sin, but of indwelling lust; and such an one, who is wise to that which is good, sees the sad work sin has made in the world, and in himself; how it has defaced the...
Matthew Henry
1 Boast not thyself of to morrow; for thou knowest not what a day may bring forth. Here is, 1. A good caution against presuming upon time to come: Boast not thyself, no, not of to-morrow, much less of many days or years to come. This does not forbid preparing for to-morrow, but presuming upon to-morrow. We must not promise ourselves the continuance of our lives and comforts till to-morrow, but...
Charles H. Spurgeon
A prudent man foreseeth the evil, and hideth himself, but the simple pass on and are punished. Take his garment that is surety for a stranger, He that taketh surety is sure, but he that goeth surety for another, and especially for a stranger, will smart for it, perhaps to the day of his death.