Wisdom is costly - and it is something that requires commitment to have in our lives. Those who have gained any wisdom knows this. Wisdom requires an investment of time and effort. One who desires wisdom must gather wisdom by reading, studying, memorizing, and meditating upon God's Word. One who desires wisdom also will desire to be in the presence of God and godly men who will speak wisdom as they listen intently. Wisdom also requires an investment of life or living. One who has wisdom - true wisdom - lives it out each and every day. The wise man bucks the world when the world tells him to go his own way. The wise man does not run with the worldly crowd when the run headlong into a pursuit of their own lusts and desires. The wise man will make difficult choices that will of necessity require him to die to self. He will walk contrary to the fools who gather and approve each others foolishness. He will speak and live wisdom when it is in season - but more importantly when it is not.
This is why wisdom is too high for the fool. He will not open his mouth in the gate. The gate was the place of decision making - the place where the elders gathered and offered their wisdom for the good of the city. Blessed is that land - that city whose gate is filled with men of wisdom. Blessed are they because the fool will not open his mouth there - for the very reason that wisdom prevails in that place. Very unfortunate is that city - that state - that people who have surrounded themselves first with their own foolishness - and ultimately with fools who sit in the gate. Theirs will be a land that multiplies foolishness - and pays for it dearly in their captivity to their own lusts and desires - and in the future - captivity to others who exploit their foolishness to gain the ascendency over them. It is better for us that the fools of our society not have the freedom to open their mouths in the gate -and that foolishness is seen for exactly what it is - foolish.
Keil and Delitzsch make a wonderful comment about this when they say, "Wisdom is to the fool too high; the way to wisdom is to him too long and too steep, the price too costly." For this reason the fool is unwilling to make the climb, pay the price, or make the sacrifice necessary to gain wisdom. The wise man does not see the cost - but the jewel. He does not see the climb - but the panoramic view. He does not see the sacrifice - but the victory in the end. Wisdom is indeed exalted, high, and pricey - but is worth every penny, every sacifice, and every labor to attain.