Ecclesiastes 1:13; Ecclesiastes 1:16-18

Ecclesiastes 1:13

13 And I applied my heart to seek and to search out by wisdom concerning all that is done under heaven: it is a sore travail that God hath given to the sons of men to be exercised therewith.

Ecclesiastes 1:16-18

16 I communed with mine own hear, saying, Lo, I have gotten me great wisdom above all that were before me in Jerusalem; yea, my heart hath had great experience of wisdom and knowledge.

17 And I applied my heart to know wisdom, and to know madness and folly: I perceived that this also was a striving after wind.

18 For in much wisdom is much grief; and he that increaseth knowledge increaseth sorrow.