1:8-13 All who labour only for the meat that perishes, will, sooner or later, be ashamed of their labour. Those that place their happiness in the delights of sense, when deprived of them, or disturbed in the enjoyment, lose their joy; whereas spiritual joy then flourishes more than ever. See what perishing, uncertain things our creature-comforts are. See how we need to live in continual dependence upon God and his providence. See what ruinous work sin makes. As far as poverty occasions the decay of piety, and starves the cause of religion among a people, it is a very sore judgment. But how blessed are the awakening judgments of God, in rousing his people and calling home the heart to Christ, and his salvation!

13. Gird yourselves—namely, with sackcloth; as in Isa 32:11, the ellipsis is supplied (compare Jer 4:8).

lament, ye priests—as it is your duty to set the example to others; also as the guilt was greater, and a greater scandal was occasioned, by your sin to the cause of God.

come—the Septuagint, "enter" the house of God (compare Joe 1:14).

lie all night in sackcloth—so Ahab (1Ki 21:27).

ministers of my God—(1Co 9:13). Joel claims authority for his doctrine; it is in God's name and by His mission I speak to you.