2 Samuel 18:16
And Joab blew the trumpet, and the people returned from pursuing after Israel; for Joab kept back the people.
2 Samuel 2:28
And Joab blew the trumpet, and all the people stood still, and pursued after Israel no more, neither did they fight any more.
2 Samuel 20:22
Then the woman went to all the people in her wisdom. And they cut off the head of Sheba the son of Bichri, and cast it to Joab. And he blew a trumpet, and they dispersed from the city, every man to his tent. And Joab returned to Jerusalem to the king.
Numbers 10:2-10
Make thee two trumpets of silver; of beaten work shalt thou make them; and they shall serve for the calling together of the assembly, and for the journeying of the camps.
1 Corinthians 14:8
For also, if the trumpet give an uncertain sound, who shall prepare himself for war?