'Wise Man' in the Bible

{The wise man can see where he is walking}, but the fool walks in darkness. Yet I also realized that both of them suffer the same fate.

Certainly no one will remember the wise man or the fool in {future generations}. When [future] days come, both will have been forgotten already. How [is it that] the wise man dies the same as the fool?

Then I saw all the work of God--man [is] not able to discover the work that is done under the sun. Although man may toil in seeking, he cannot find it. Even if a wise man claims [that he] knows it, he cannot find it.

Now, a poor wise man was found in it, and he delivered the city by his wisdom.

The wise man [wins] favor by the words of his mouth, but the fool is devoured by his own lips.