Who is a wise man and endued with knowledge among you? let him shew out of a good conversation his works with meekness of wisdom.
Who - (cf. Psalms 34:12-13.) All wish to appear "wise:" few are so.
Show - `by works,' not merely by profession (James 2:18).
Out of a good conversation his works - by general 'good conduct' х anastrofees (G391)] manifested in particular "works." "Wisdom" and "knowledge," without these being 'shown,' are as dead as faith without works (Alford).
With meekness of wisdom - with the meekness inseparable from true wisdom.