blew the trumpet

2 Samuel 2:28
So Joab blew the trumpet, and all the troops stopped; they no longer pursued Israel or continued to fight.

2 Samuel 20:22
Then the woman went to all the people with her wise counsel, and they cut off the head of Sheba son of Bichri and threw it to Joab. So he blew the trumpet and his men dispersed from the city, each to his own home. And Joab returned to the king in Jerusalem.

Numbers 10:2-10
"Make two trumpets of hammered silver to be used for calling the congregation and for having the camps set out. . . .

1 Corinthians 14:8
Again, if the trumpet sounds a muffled call, who will prepare for battle?