The contents of this book are, (1.) A prophecy of a great public calamity then impending over the land, consisting of a want of water and an extraordinary plague of locusts (1:1-2:11). (2.) The prophet then calls on his countrymen to repent and to turn to God, assuring them of his readiness to forgive (2:12-17), and foretelling the restoration of the land to its accustomed fruitfulness (18-26). (3.) Then follows a Messianic prophecy, quoted by Peter (Acts 2:39). (4.) Finally, the prophet foretells portents and judgments as destined to fall on the enemies of God (ch. 3, but in the Hebrew text 4).