13. this sore travail--namely, that of "searching out all things
done under heaven." Not human wisdom in general, which comes afterwards
(Ec 2:12,
&c.), but laborious enquiries into, and speculations about, the works
of men; for example, political science. As man is doomed to get his
bread, so his knowledge, by the sweat of his brow
(Ge 3:19)
[GILL].
exercised--that is, disciplined; literally, "that they may thereby
chastise, or humble themselves."
JFB.
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