Thematic Bible: Blowing the trumpets on various occasions

Yahweh spoke to Moses, saying, "Make yourself two silver trumpets; make them [of] hammered-work. {You will use them} for calling the community and for breaking the camp. You will blow them, and all the community will assemble to the doorway of the tent of assembly. read more.
But if they blow only one, the leaders, the heads of the thousands of Israel, will assemble to you. [When] you will blow a blast, the camps that are camping on the east will set out; [when] you blow a second blast, the camps that are camping on the south will set out; they will blow a blast for their journeys. But when summoning the assembly, you will blow, but you will not signal with a loud noise. The sons of Aaron, the priests, will blow on the trumpets; this will be an eternal decree for your generations. If you go [to] war in your land against the enemy who attacks you, you will signal with a loud noise on the trumpets. You will be remembered {before} Yahweh your God, and you will be rescued from your enemies. "And on the day of your joy and in your appointed times, at the beginning of your months, you will blow on the trumpets in addition to your burnt offerings and in addition to the sacrifices of your fellowship offerings. And they will be as a memorial for you {before} your God; I [am] Yahweh your God."

You will march around the city, all the warriors circling the city once; you will do so for six days. And seven priests will bear seven trumpets of rams' horns before the ark. On the seventh day you will march around the city seven times, and the priests will blow on the trumpets.