'Wise Man' in the Bible

Who is the wise man that may understand this? And who is he to whom the mouth of the Lord has spoken, that he may declare it? Why is the land ruined, laid waste like a desert, so that no one passes through?

Thus says the Lord, “Let not a wise man boast of his wisdom, and let not the mighty man boast of his might, let not a rich man boast of his riches;