Ecclesiastes 8:16-17

21st Century King James Version

¹⁶ When I applied mine heart to know wisdom, and to see the business that is done upon the earth (for also is there that neither day nor night seeth sleep with his eyes),

¹⁷ 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 labor to seek it out, yet shall he not find it; yea further, though even a wise man think to know it, yet shall he not be able to find it.