Numbers 10:8-10

International Standard Version

⁸ The descendants of Aaron the priest are to blow the trumpets. Have them do this for you permanently throughout your generations to come.”

Sounding the Trumpet in Battle

⁹ “When you wage war in your land against an enemy who is hostile to you, you are to sound an alarm with the trumpets. Then you will be remembered before the face of the Lord your God and you will be delivered from your enemies. ¹⁰ At the beginning of the month, during your time of rejoicing at the appointed place, sound the trumpet over your burnt offering, then sacrifice your peace offering, since they are to be your memorial before the Lord your God. I am the Lord your God.”