If the iron be blunt The axe wherewith a man cuts wood; he must put to more strength To make it cut: that is, if a man do not use fit and proper means to accomplish any work, it will cost him so much the more labour and pains; but wisdom is profitable to direct Both in the choice and in the use of means. In other words, As wisdom instructs a man in the smallest matters, so it is useful for a man's direction in all weighty affairs.
Related Commentaries of Ecclesiastes 10:10
Ecclesiastes 10:10
10 If the iron be blunt, and he do not whet the edge, then must he put to more strength: but wisdom is profitable to direct.