2 Samuel 18:16
Then Joab blew the trumpet [to signal the end of the combat], and the men returned from pursuing Israel, for Joab held them back.
2 Samuel 2:28
So Joab blew the trumpet; and all the people halted and no longer pursued Israel, nor did they fight anymore.
2 Samuel 20:22
Then the woman in her wisdom went to all the people [to inform them of the agreement]. And they beheaded Sheba the son of Bichri and threw his head [down] to Joab. So he blew the trumpet [signaling the end of the attack], and they dispersed from the city, every man to his own tent. And Joab returned to Jerusalem to [David] the king.
Numbers 10:2-10
“Make two trumpets of silver; you shall make them of hammered work. You shall use them to summon the congregation and to have the camps move out.
1 Corinthians 14:8
And if the [war] bugle produces an indistinct sound, who will prepare himself for battle?