Matthew Poole and continuators on Proverbs 28:14

14 Happy is the man that feareth alway : but he that hardeneth his heart shall fall into mischief.

Because he shall thereby avoid that mischief which besals fearless sinners, which is expressed in the next clause, and procure that eternal Salvation which they lose.

To wit, the offence and judgments of God. Who having confessed and forsaken his sins, as was now said, is afraid to return to them again, and careful to avoid them, and all occasions of them.

In all times, companies, and conditions, not only in the time of great trouble, when even Hypocrites will in some sort be afraid of sinning, but in times of outward Peace and Prosperity.

That goeth on obstinately and securely in sinful courses, casting off due reverence to God, and just fear of his threatnings and judgments.

Marginal references: Rom. 11. 20.