4 Bible Verses about Studying Insanity

And I applied my heart to the knowledge of wisdom, and to the knowledge of madness and folly: I perceived that this also is a striving after the wind.

And I turned myself to behold wisdom, and madness, and folly; for what shall the man do that cometh after the king? that which hath already been done.

I turned, I and my heart, to know, and to search, and to seek out wisdom and reason, and to know wickedness to be folly, and foolishness to be madness;

I said of laughter, Madness! and of mirth, What availeth it?