We now hence learn, that it was not without reason that Haggai was sent on the eighth day to recover the people from their indifference. And hence also we may learn how necessary it is for us to be constantly stimulated; for Satan can easily find out a thousand impediments, by which he may turn us aside from the right course, except God often repeats his exhortations to keep us awake. Eight days only have elapsed, and the people would have ceased from their work, had not Haggai been sent to encourage them again.