¹³ And I ^(A)gave my heart to seek and ^(B)explore by wisdom concerning all that has been done under heaven. It is ^[a]a grievous ^(C)endeavor which God has given to the sons of men with which to occupy themselves.

²⁵ I ^(A)turned my heart to know, to explore, and to seek wisdom and an explanation, and to know the wickedness of foolishness and the simpleminded folly of madness.