I know some very successful power lifters.Their humility shines brighter than their achievements.So when you realize how strong they must be to have earned their accomplishments, you realize they carry their strength in total control.Which is just like what Proverb 21 is talking about here.The true wisdom of the Lord providesthe most strength,in every way,of all of life.The more wisdom one has, the more humility one will have as well.And it will not be used as a weapon or to boast.That is why it is wisdom, not knowledge, that is able to defeat all arguments of the enemy.It is the mighty power of God, in man, to win any combat that comes our way.As much as those without God will try, they will NEVER triumph over the man who walks in the Wisdom of The Word.