Joel 1:15
15. day of the Lord— (Joe 2:1, 11); that is, the day of His anger (Isa 13:9; Ob 15; Zep 1:7, 15). It will be a foretaste of the coming day of the Lord as Judge of all men, whence it receives the same name. Here the transition begins from the plague of locusts to the worse calamities (Joe 2:1-11) from invading armies about to come on Judea, of which the locusts were the prelude.
Joel 2:1-3
1. Blow . . . trumpet—to sound an alarm of coming war (Nu 10:1-10; Ho 5:8; Am 3:6); the office of the priests. Joe 1:15 is an anticipation of the fuller prophecy in this chapter.
2. darkness . . . gloominess . . . clouds . . . thick darkness—accumulation of synonyms, to intensify the picture of calamity (Isa 8:22). Appropriate here, as the swarms of locusts intercepting the sunlight suggested darkness as a fit image of the coming visitation.
as the morning spread upon the mountains: a great people—Substitute a comma for a colon after mountains: As the morning light spreads itself over the mountains, so a people numerous [MAURER] and strong shall spread themselves. The suddenness of the rising of the morning light, which gilds the mountain tops first, is less probably thought by others to be the point of comparison to the sudden inroad of the foe. MAURER refers it to the yellow splendor which arises from the reflection of the sunlight on the wings of the immense hosts of locusts as they approach. This is likely; understanding, however, that the locusts are only the symbols of human foes. The immense Assyrian host of invaders under Sennacherib (compare Isa 37:36) destroyed by God (Joe 2:18, 20, 21), may be the primary objects of the prophecy; but ultimately the last antichristian confederacy, destroyed by special divine interposition, is meant (see on Joe 3:2). there hath not been ever the like—(Compare Joe 1:2; Ex 10:14).3. before . . . behind—that is, on every side (1Ch 19:10).
fire . . . flame—destruction . . . desolation (Isa 10:17). as . . . Eden . . . wilderness—conversely (Isa 51:3; Eze 36:35). Obadiah 15
15. For—resumptive in connection with Ob 10, wherein Edom was threatened with cutting off for ever.
the day of the Lord—the day in which He will manifest Himself as the Righteous Punisher of the ungodly peoples (Joe 3:14). The "all" shows that the fulfilment is not exhausted in the punishment inflicted on the surrounding nations by the instrumentality of Nebuchadnezzar; but, as in Joe 3:14, and Zec 12:3, that the last judgment to come on the nations confederate against Jerusalem is referred to. as thou hast done, it shall be done unto thee—the righteous principle of retribution in kind (Le 24:17; Mt 7:2; compare Jud 1:6, 7; 8:19; Es 7:10). thy reward—the reward of thy deed (compare Isa 3:9-11).