'Blow the Trumpet' in the Bible

Blow the trumpet in the new moon, in the time appointed, on our solemn feast day.

O ye children of Benjamin, gather yourselves to flee out of the midst of Jerusalem, and blow the trumpet in Tekoa, and set up a sign of fire in Beth-haccerem: for evil appeareth out of the north, and great destruction.

Set ye up a standard in the land, blow the trumpet among the nations, prepare the nations against her, call together against her the kingdoms of Ararat, Minni, and Ashchenaz; appoint a captain against her; cause the horses to come up as the rough caterpillars.

If when he seeth the sword come upon the land, he shall blow the trumpet, and warn the people;

Blow the trumpet in Zion, sanctify a fast, call a solemn assembly:

And the LORD shall be seen over them, and his arrow shall go forth as the lightning: and the Lord GOD will blow the trumpet, and will go with whirlwinds of the south.