Old Testament readings use the Septuagint , the Scripture the apostles quoted. Masoretic numbering shown for reference.Learn why
WEB

Ecclesiastes 8:17

then I saw all the work of God, that man can’t find out the work that is done under the sun, because however much a man labors to seek it out, yet he won’t find it. Yes even though a wise man thinks he can comprehend it, he won’t be able to find it.

Parallel Translations

LXXView canonical →
And I beheld all the works of God, that a man shall not be able to discover the work which is wrought under the sun; whatsoever things a man shall endeavour to seek, however a man may labour to seek it, yet he shall not find it; yea, how much soever a wise man may speak of knowing it, he shall not be able to find it: for I applied all this to my heart, and my heart has seen all this.
Brenton's Septuagint Translation
LXX2012View canonical →
And I saw all the works of God, that a man shall not be able to discover the work which is wrought under the sun; whatever things a man shall endeavor to seek, however a man may labor to seek it, yet he shall not find it; yes, how much soever a wise man may speak of knowing it, he shall not be able to find it: for I applied all this to my heart, and my heart has seen all this.
Septuagint in American English (2012)
KJVView canonical →
Then I beheld all the work of God, that a man cannot find out the work that is done under the sun: because though a man labour to seek it out, yet he shall not find it; yea further; though a wise man think to know it, yet shall he not be able to find it.
King James Version

Cross References

Cross references via openbible.info (CC-BY)