Ecclesiastes 1:13; Ecclesiastes 1:16-18

Ecclesiastes 1:13

13 I applied my heart to seek and to search out by wisdom concerning all that is done under the sky. It is a heavy burden that God has given to the sons of men to be afflicted with.

Ecclesiastes 1:16-18

16 I said to myself, "Behold, I have obtained for myself great wisdom above all who were before me in Yerushalayim. Yes, my heart has had great experience of wisdom and knowledge."

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

18 For in much wisdom is much grief; and he who increases knowledge increases sorrow.