Bible Gateway:
https://www.biblegateway.com/passage/?search=James+3%3A13-18&version=AMP
Bible Hub Commentary James 3:13-15
https://biblehub.com/commentaries/james/3-13.htm
Benson Commentary:
James 3:13-16. Who is a wise man, &c. — People are naturally desirous of the reputation of possessing an understanding superior to that of others. Now, let us consider in what way the sense we have may be best manifested; let him who would be thought wise show his wisdom, as well as his faith, by his works; let him show out of a good — That is, a holy and useful conversation, his commendable and beneficent works, with meekness of wisdom — “This beautiful expression,” says Macknight, “intimates, that true wisdom is always accompanied with meekness, or the government of the passions.” But if ye have bitter envying — Ζηλον, zeal, as the word properly signifies, or zeal accompanied with a bitter spirit, or an unkind disposition toward others. True Christian zeal is only the flame of love; but bitter, unhallowed zeal is evil, even if it be only found in the heart, and go no further. If that kind of zeal be in you, glory not — Or boast not of your improvement in Christianity; and lie not against the truth.