Synopsis of the Books of the Bible, by John Nelson Darby, [1857-62], at sacred-texts.com
The Spirit of God takes the opportunity afforded by an unparalleled scarcity, caused by the invasion of innumerable armies of insects, to rouse the attention of the people with respect to the day of Jehovah; that great and terrible day which was to come, and in which His power should be manifested in judgment-in which He, who had shewn long patience, would at length interpose to vindicate the glory of His name, and deliver it from the reproach cast thereon by the sin of His people, and to take vengeance on all that magnified itself against Him. That which is here presented to us as the rod of Jehovah is the northern army-the same that we so often find in the prophets-the Assyrian. But, in the end, it is God Himself who, after having chastised His people by means of this enemy, intervenes for his destruction, and for the judgment of all the nations gathered round Jerusalem. In examining the prophecy, the reader may observe that it distinguishes between the famine that ushered in the day of Jehovah, and that day itself. We have only to compare Joe 1:15; and Joe 2:1; Joe 2:11. The state of famine and desolation, interpreted by the Spirit of prophecy, calls on the people to present themselves before Jehovah, because the day of Jehovah was at hand.