Adam Clarke on Haggai 2:16

Since those days were - I have shown my displeasure against you, by sending blasting and mildew; and so poor have been your crops that a heap of corn which should have produced twenty measures produced only ten; and that quantity of grapes which in other years would have produced fifty measures, through their poverty, smallness, etc., produced only twenty. And this has been the case ever since the first stone was laid in this temple; for your hearts were not right with me, and therefore I blasted you in all the labors of your hands; and yet ye have not turned to me, Hag 2:17.