Ecclesiastes 1:13; Ecclesiastes 1:16-18

Ecclesiastes 1:13

13 And I applied my heart to seek and search out by wisdom concerning all that is done under the heavens: this grievous occupation hath God given to the children of men to weary themselves therewith.

Ecclesiastes 1:16-18

16 I communed with mine own heart, saying, Lo, I have become great and have acquired wisdom more than all they that have been before me over Jerusalem; and my heart hath seen much of wisdom and knowledge.

17 And I applied my heart to the knowledge of wisdom, and to the knowledge of madness and folly: I perceived that this also is a striving after the wind.

18 For in much wisdom is much vexation, and he that increaseth knowledge increaseth sorrow.