He that trusteth in his own heart is a fool: but whoso walketh wisely, he shall be delivered.

Wesley's Notes

28:26 Wisely - Distrusting his own judgment, and seeking the advice of others, and especially of God.

Jamieson-Fausset-Brown Bible Commentary

26. (Compare Pr 3:6-8).

walketh wisely-that is, trusting in God (Pr 22:17-19).

Matthew Henry's Concise Commentary

28:24. Here is the wickedness of those who think it no sin to rob their parents, by wheedling them or threatening them, or by wasting what they have, and running into debt. 25. Those make themselves always easy, that live in continual dependence upon God and his grace, and live by faith. 26. A fool trusts to his own strength, merit, and righteousness. And trusts to his own heart, which is not only deceitful above all things, but which has often deceived him. 27. A selfish man not only will not look out for objects of compassion, but will look off from those that call for his attention. 28. When power is put into the hands of the wicked, wise men decline public business. If the reader will go diligently over this and the other chapters, in many places where at first he may suppose there is least of Christ, still he will find what will lead to him.

Matthew Henry's Whole Bible Commentary

Verse 26

Here is, 1. The character of a fool: He trusts to his own heart, to his own wisdom and counsels, his own strength and sufficiency, his own merit and righteousness, and the good opinion he has of himself; he that does so is a fool, for he trusts to that, not only which is deceitful above all things (Jer. 17:9), but which has often deceived him. This implies that it is the character of a wise man (as before, v. 25) to put his trust in the Lord, and in his power and promise, and to follow his guidance, Prov. 3:5, 6. 2. The comfort of a wise man: He that walks wisely, that trusts not to his own heart, but is humble and self-diffident, and goes on in the strength of the Lord God, he shall be delivered; when the fool, that trusts in his own heart, shall be destroyed.