Ecclesiastes 8:16-17

16When I applied my heart to know wisdom, and to see the business that is done upon the earth (for also there is that neither day nor night seeth sleep with his eyes), 17then I saw that all [is] the work of 1God, [and] that man cannot find out the work that is done under the sun: because however man may labour to seek [it] out, yet doth he not find [it]; and even, if a wise [man] think to know [it], he shall not be able to find [it] out.