يعقوب ٣:١٣

Who is a wise man - One truly religious; who, although he can neither bridle nor tame other men's tongues, can restrain his own. And endued with knowledge - Και επιστημων· And qualified to teach others. Let him show - Let him by a holy life and chaste conversation show, through meekness and gentleness, joined to his Divine information, that he is a Christian indeed; his works and his spirit proving that God is in him of a truth; and that, from the fullness of a holy heart, his feet walk, his hands work; and his tongue speaks. We may learn from this that genuine wisdom is ever accompanied with meekness and gentleness. Those proud, overbearing, and disdainful men, who pass for great scholars and eminent critics, may have learning, but they have not wisdom. Their learning implies their correct knowledge of the structure of language, and of composition in general; but wisdom they have none, nor any self-government. They are like the blind man who carried a lantern in daylight to keep others from jostling him in the street. That learning is not only little worth, but despicable, that does not teach a man to govern his own spirit, and to be humble in his conduct towards others.

Who--(Compare Psa 34:12-13). All wish to appear "wise": few are so. show--"by works," and not merely by profession, referring to Jam 2:18. out of a good conversation his works--by general "good conduct" manifested in particular "works." "Wisdom" and "knowledge," without these being "shown," are as dead as faith would be without works [ALFORD]. with meekness of wisdom--with the meekness inseparable from true "wisdom."

Who is a wise man. Meaning, not in things natural and civil, or merely moral, but in things spiritual: and he is a wise man, who is both wise to do good, and wise unto salvation; who has learned to know his own ignorance, folly, and stupidity; for the first lesson in the school of spiritual wisdom is for a man to know that he is a fool: and he is a wise man who considers his latter end, thinks of a future state, and what will become of him in another world; and who builds his faith and hope of eternal salvation on the sure and only foundation, the rock Christ Jesus; and who takes up a profession of religion upon principles of grace, and with views to the glory of God, and, upon mature deliberation, reckoning the cost, and what he must expect to meet with; and which he holds fast, without wavering, and yet does not depend upon it; and who walks circumspectly, and with wisdom, towards them that are without; and who observes both providences and promises, for the encouragement of his faith; and keeps looking to the mark for the prize, preferring heavenly things to earthly ones. And endued with knowledge amongst you? as he is, who is endued with the knowledge of himself; of the impurity of his nature, and the plague of his heart; and of his impotency and inability to do any thing that is spiritually good of himself; and of the imperfection and insufficiency of his righteousness to justify him before God; and of his lost state and condition by nature, how deserving of the wrath of God, and obnoxious to the curses of the law; and how miserable he must be without the grace of God and righteousness of Christ: and who is also endued with the knowledge of Christ, so as to see a fulness, suitableness, and ability in him as a Saviour; so as to love him, approve of him, as such, and…

As the sins before condemned arise from an affectation of being thought more wise than others, and being endued with more knowledge than they, so the apostle in these verses shows the difference between men's pretending to be wise and their being really so, and between the wisdom which is from beneath (from earth or hell) and that which is from above. I. We have some account of true wisdom, with the distinguishing marks and fruits of it: Who is a wise man, and endued with knowledge among you? Let him show out of a good conversation his works with meekness of wisdom, Jam 3:13. A truly wise man is a very knowing man: he will not set up for the reputation of being wise without laying in a good stock of knowledge; and he will not value himself merely upon knowing things, if he has not wisdom to make a right application and use of that knowledge. These two things must be put together to make up the account of true wisdom: who is wise, and endued with knowledge? Now where this is the happy case of any there will be these following things: - 1. A good conversation. If we are wiser than others, this should be evidenced by the goodness of our conversation, not by the roughness or vanity of it. Words that inform, and heal, and do good, are the marks of wisdom; not those that look great, and do mischief, and are the occasions of evil, either in ourselves or others. 2. True wisdom may be known by its works. The conversation here does not refer only to words, but to the whole of men's practice; therefore it is said, Let him show out of a good conversation his works. True wisdom does not lie in good notions or speculations so much as in good and useful actions. Not he who thinks well, or he who talks well, is in the sense of the scripture allowed to be wise, if he do not live and act…

3:13 If you are wise and understand: The wisdom that comes from God (1:5) is not mere intellectual skill nor the collection of information, it is practical insight and spiritual understanding which expresses itself in moral uprightness, as described in 3:17-18 (see also Job 28:28; Prov 1:2-4; 2:10-15).