Ecclesiastes 7:25

And I gave my heart to seek and explore by wisdom concerning all that has been done under heaven. It is a grievous endeavor which God has given to the sons of men with which to occupy themselves.

And I gave my heart to know wisdom and to know madness and simpleminded folly; I came to know that this also is striving after wind.

I explored with my heart how to stimulate my body with wine—while my heart was guiding me wisely—and how to seize simpleminded folly, until I could see where is this good for the sons of men in what they do under heaven the few days of their lives.

the beginning of the words of his mouth is simpleminded folly, and the end of what comes from his mouth is evil madness.