1:1-7 The most aged could not remember such calamities as were about to take place. Armies of insects were coming upon the land to eat the fruits of it. It is expressed so as to apply also to the destruction of the country by a foreign enemy, and seems to refer to the devastations of the Chaldeans. God is Lord of hosts, has every creature at his command, and, when he pleases, can humble and mortify a proud, rebellious people, by the weakest and most contemptible creatures. It is just with God to take away the comforts which are abused to luxury and excess; and the more men place their happiness in the gratifications of sense, the more severe temporal afflictions are upon them. The more earthly delights we make needful to satisfy us, the more we expose ourselves to trouble.

6. nation—applied to the locusts, rather than "people" (Pr 30:25, 26), to mark not only their numbers, but also their savage hostility; and also to prepare the mind of the hearer for the transition to the figurative locusts in the second chapter, namely, the "nation" or Gentile foe coming against Judea (compare Joe 2:2).

my land—that is, Jehovah's; which never would have been so devastated were I not pleased to inflict punishment (Joe 2:18; Isa 14:25; Jer 16:18; Eze 36:5; 38:16).

strong—as irresistibly sweeping away before its compact body the fruits of man's industry.

without number—so Jud 6:5; 7:12, "like grasshoppers (or "locusts") for multitude" (Jer 46:23; Na 3:15).

teeth … lion—that is, the locusts are as destructive as a lion; there is no vegetation that can resist their bite (compare Re 9:8). Pliny says "they gnaw even the doors of houses."