NET

13 I decided to carefully and thoroughly examine all that has been accomplished on earth. I concluded: God has given people a burdensome task that keeps them occupied.

Darby

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^D4475 to weary themselves therewith.

Darby Bible Notes

men - Or 'sons of the Adam;' often in this book. The Adam is also frequent. see Gen. 1.27.

KJV

13 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^K4393.

KJV Bible Notes

to be exercised therewith: Or, to afflict them.

Strong's

13 And I gave^H5414 my heart^H3820 to seek^H1875 and search out^H8446 by wisdom^H2451 concerning all things that are done^H6213 under heaven^H8064: this sore^H7451 travail^H6045 hath God^H430 given^H5414 to the sons^H1121 of man^H120 to be exercised^H6031 therewith.