Numbers 10:7-9 Easy-to-Read Version (ERV)
7 But if you want to gather the people together for a special meeting, blow the trumpets in a different way—blow a long steady blast on the trumpets. 8 Only Aaron’s sons, the priests, should blow the trumpets. This is a law for you that will continue forever, for generations to come.
9 “If you are fighting an enemy in your own land, blow loudly on the trumpets before you go to fight them. The Lord your God will hear you, and he will save you from your enemies.