Bible Verses About Trumpet: Made of ram's horn

Seven cohanim are to carry seven shofars in front of the ark. On the seventh day you are to march around the city seven times, and the cohanim will blow the shofars.

Then they are to blow a long blast on the shofar. On hearing the sound of the shofar, all the people are to shout as loudly as they can; and the wall of the city will fall down flat. Then the people are to go up into the city, each one straight from where he stands."

Y'hoshua the son of Nun called the cohanim and told them, "Take up the ark for the covenant, and have seven cohanim carry seven shofars ahead of the ark of ADONAI."

When Y'hoshua had spoken to the people, the seven cohanim carrying the seven shofars before ADONAI passed on and blew on the shofars, with the ark for the covenant of ADONAI following them.

The seven cohanim carrying the seven shofars ahead of the ark of ADONAI went on, continually blowing on their shofars, with the fighting men marching ahead of them and the rearguard following after the ark of ADONAI; all the while the blowing on the shofars was incessant.