Joel 2:1

1 Sound the trumpet in Sion, make a proclamation in my holy mountain, and let all the inhabitants of the land be confounded: for the day of the Lord is near;

Joel 2:1 Meaning and Commentary

Joel 2:1

Blow ye the trumpet in Zion, and sound an alarm in my holy
mountain
This is spoken to the priests, whose business it was to blow the trumpets for calling solemn assemblies to meet in Zion, the temple built there, called from thence the holy mountain of God. Here the trumpet is ordered to be blown with a broken quivering voice, a tarantantara, to give notice of approaching danger by the locusts, or those enemies signified by them, and to prepare for it, and return to God by repentance; let all the inhabitants of the land tremble;
at the judgments of God coming upon them, and the alarm of them: for the day of the Lord cometh, for [it is] nigh at hand;
the time fixed by him to punish a wicked people, and to pour out his wrath and vengeance on them; the day of his visitation, not in love, but in anger.

Joel 2:1 In-Context

1 Sound the trumpet in Sion, make a proclamation in my holy mountain, and let all the inhabitants of the land be confounded: for the day of the Lord is near;

2 for a day of darkness and gloominess is near, a day of cloud and mist: a numerous and strong people shall be spread upon the mountains as the morning; there has not been from the beginning one like it, and after it there shall not be again even to the years of many generations.

3 Before them is a consuming fire, and behind them is a flame kindled: the land before them is as a paradise of delight, and behind them a desolate plain: and there shall none of them escape.

4 Their appearance is as the appearance of horses; and as horsemen, so shall they pursue.

5 As the sound of chariots on the tops of mountains shall they leap, and as the sound of a flame of fire devouring stubble, and as a numerous and strong people setting themselves in array for battle.