Blow ye the trumpet in Zion, and sound an alarm in my holy mountain: let all the inhabitants of the land tremble: for the day of the LORD cometh, for it is nigh at hand;
A more terrific judgment than that of the locusts, foretold under imagery drawn from that of the calamity then engrossing the afflicted nation. He therefore exhorts to repentance, assuring the Jews of Yahweh's pity if they would repent. Promise of the Holy Spirit in the last days under Messiah, and the deliverance of all believers in Him.
Blow ye the trumpet - to sound an alarm of coming war (Numbers 10:1-36; Hosea 5:8; Amos 3:6); the office of the priests. Joel 1:15 is an anticipation of the fuller prophecy in this chapter.