'Sound of the Trumpet' in the Bible

And when they blow long on the horn of the ram, when you hear the sound of the trumpet, all the people will shout [with] a great war cry, and the wall of the city will fall flat, and {the people will charge, each one straight ahead}."

So the people shouted, and they blew on the trumpets. And when the people heard the sound of the trumpet, they raised a great shout, and the wall fell flat. {The people charged, each one straight ahead into the city}, and they captured it.

So David and all the house of Israel [were] bringing up the ark of Yahweh with shouts of joyful acclaim and with the sound of the trumpet.

Then Absalom sent scouts throughout all the tribes of Israel, saying, "When you hear the sound of the trumpet, you shall shout 'Absalom has become king in Hebron!'"

And Adonijah and all the invited guests who were with him heard [it]. Now they were finished eating when Joab heard the sound of the trumpet and said, "{Why is there such a noise in the city?}"

Wherever you hear the sound of the trumpet, come together to us there. Our God will fight for us."