2 Samuel 18:16
Then Joab blew on the trumpet and the troops returned from pursuing after Israel, for Joab kept back the troops.
2 Samuel 2:28
Then Joab blew on the trumpet and all the people stopped, and they no longer pursued after Israel, and they did not fight with them again.
2 Samuel 20:22
The woman went to all of the people with her wise plan, so they cut off the head of Sheba the son of Bicri and threw [it] to Joab. Then he blew the horn and dispersed from the city, each to his tent. Then Joab returned to Jerusalem to the king.
Numbers 10:2-10
"Make yourself two silver trumpets; make them [of] hammered-work. {You will use them} for calling the community and for breaking the camp.
1 Corinthians 14:8
For indeed, if the trumpet produces an indistinct sound, who will prepare for battle?