4 Bible Verses about Studying Insanity

So {I dedicated myself} to learn about wisdom and [to] learn about delusion and folly. However, I discovered that this also [is] chasing wind.

Next, I considered wisdom, as well as delusion and folly. What can anyone [do] who will come after the king that has not already been done?

I set my mind to try to seek wisdom and the plan, and to know that wickedness [is] foolishness and that folly [is] delusion.

I said of laughter, "[It is] folly!" and of pleasure, "{What does it accomplish?}"