Joel's arresting imagery--blasting trumpet, darkened sun and marching hosts--has shaped the church's eschatological vision of a day of wrath.Amos's ringing indictments--callous oppression, heartless worship and self-seeking gain--have periodically awakened the conscience of God's people.Twenty-five-hundred years after they were first born, those prophetic words never fail to awaken and arrest. Viewed against the background of their culture and society,...