Ecclesiastes 1:13; Ecclesiastes 1:16-18

Ecclesiastes 1:13

13 And I set my heart to seek and search out by wisdom concerning all that is done under heaven; this burdensome task God has given to the sons of man, by which they may be exercised.

Ecclesiastes 1:16-18

16 I communed with my heart, saying, "Look, I have attained greatness, and have gained more wisdom than all who were before me in Jerusalem. My heart has understood great wisdom and knowledge."

17 And I set my heart to know wisdom and to know madness and folly. I perceived that this also is grasping for the wind.

18 For in much wisdom is much grief, And he who increases knowledge increases sorrow.