Numbers 31:6
And Moses sent the thousand from each tribe into battle, along with Phinehas son of Eleazar the priest, who took with him the vessels of the sanctuary and the trumpets for signaling.

Joshua 6:4-16
Have seven priests carry seven trumpets of rams' horns in front of the ark. Then on the seventh day, march around the city seven times, while the priests blow the trumpets. . . .

1 Chronicles 15:24
Shebaniah, Joshaphat, Nethanel, Amasai, Zechariah, Benaiah, and Eliezer the priests were to blow the trumpets before the ark of God. Obed-edom and Jehiah were also to be guardians of the ark.

1 Chronicles 16:6
and the priests Benaiah and Jahaziel blew the trumpets regularly before the ark of the covenant of God.

2 Chronicles 13:12-15
Now behold, God Himself is with us as our head, and His priests with their trumpets sound the battle call against you. O children of Israel, do not fight against the LORD, the God of your fathers, for you will not succeed." . . .