Ecclesiastes 7:23-25

New King James Version

²³ All this I have ^[a]proved by wisdom.
^(A)I said, “I will be wise”;
But it was far from me.
^24 (B)As for that which is far off and ^(C)exceedingly deep,
Who can find it out?
^25 (D)I applied my heart to know,
To search and seek out wisdom and the reason of things,
To know the wickedness of folly,
Even of foolishness and madness.