Ecclesiastes 1:13

And I applied my heart to seek out and examine by wisdom concerning all things that are done under heaven, for God has given to the sons of men an evil trouble to be troubled therewith.

And I gave my heart to seek and search out by wisdom concerning all things that are done under heaven: this sore travail hath God given to the sons of man to be exercised therewith.

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.