'Trumpet' in the Bible

When he arrived, he sounded the trumpet in the hill country of E'phraim; and the people of Israel went down with him from the hill country, having him at their head.

But the Spirit of the LORD took possession of Gideon; and he sounded the trumpet, and the Abiez'rites were called out to follow him.

When I blow the trumpet, I and all who are with me, then blow the trumpets also on every side of all the camp, and shout, 'For the LORD and for Gideon.'"