By wise counsel thou shalt make thy war - See note on Proverbs 20:18.

For by wise counsel thou shall make thy war,.... Counsel, as well as strength, is necessary for war: kings and states, before they enter on a war, should not only well consider the justness of their cause, but should consult whether they have a sufficiency of men and money to carry it on; and should concert the wisest methods to attack the enemy, or defend themselves; and, above all, should ask counsel of God; see 2-Kings 18:20. And this is true of our spiritual warfare with sin, Satan, the world, and false teachers; which requires not only strength to wage war with them, but wise counsel, that we may be able to understand and guard against their cunning, wiles, and stratagems: and this is principally to be asked of God, who is wonderful in counsel; and of good and experienced men, skilled in those matters;
and in the multitude of counsellors there is safety; to take the advice of wise counsellors, and many of them, even among men, is safe for princes and states, in the above case and in all others; and especially to ask and take counsel of God, who gives wisdom liberally to them that ask it; and of Christ, the wonderful Counsellor; and from the Scriptures, whom David made his counsellors; and from old experienced Christians, and ministers of the word, with whom are wisdom, counsel, and understanding; See Gill on Proverbs 11:14.

Thy war - War is better managed by wisdom than by strength.