The prophet Joel describes this very season Joel chapter 2: Blow 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 is coming, For it is at hand.
The Lord shall lead his people as they fight! His arrows shall fly like lightning; the
Lord God shall sound the trumpet call and go out against his enemies like a whirlwind off the desert from the south. Zechariah 9:14 TLB
