Ecclesiastes 7:19

Wisdom strengtheneth the wise— That wisdom (see Ecclesiastes 7:18.) will strengthen the wise, more than ten princes which are in a city. From the 16th to the 20th verse we have the fourth advice. All affectation must be avoided. An over-affectation to be better or wiser than the rest of mankind, can turn to no good account. This affectation of righteousness is real folly: Ecclesiastes 7:16. The contrary extreme is still more pernicious, though it is the case of many to fall into it, lest they should be deemed hypocrites. But avowed and excessive wickedness may easily bring a man to a shameful and untimely end, especially if it be accompanied with the foolishness, or heedlessness, which often makes men run headlong into any thing which their passions prompt them to: Ecclesiastes 7:17. Therefore the middle course between any kind of affectation must be taken, and constantly pursued. That middle course consists in the fear of God, whereby a man avoids all excesses, and all inconveniences arising from them: Ecclesiastes 7:18. This is the true wisdom; the true principle of spiritual strength, whereby a man may be better enabled to go through this world, than any town to stand the attacks of her enemies, though ten powerful princes should unite in her favour, and join their forces to defend her bulwarks. This is a support which can never fail: Ecclesiastes 7:19.