Commentaries
10:4-10 Solomon appears to caution men not to seek redress in a hasty manner, nor to yield to pride and revenge. Do not, in a passion, quit thy post of duty; wait awhile, and thou wilt find that yielding pacifies great offences. Men are not preferred according to their merit. And those are often most forward to offer help, who are least aware of the difficulties, or the consequences. The same remark is applied to the church, or the body of Christ, that all the members should have the same care one for another.
10. iron … blunt—in "cleaving wood" (Ec 10:9), answering to the "fool set in dignity" (Ec 10:6), who wants sharpness. More force has then to be used in both cases; but "force" without judgment "endangers" one's self. Translate, "If one hath blunted his iron" [Maurer]. The preference of rash to judicious counsellors, which entailed the pushing of matters by force, proved to be the "hurt" of Rehoboam (1Ki 12:1-33).
wisdom is profitable to direct—to a prosperous issue. Instead of forcing matters by main "strength" to one's own hurt (Ec 9:16, 18).