5. When a trumpet blast is blown, the tribes that are camped on the east side must start out.
6. When the second blast is blown, the camps on the south side must start out. The blast will tell them when to start.
7. Blow the trumpets to gather the people together. But do not use the same kind of blast.
8. "The sons of Aaron, the priests, must blow the trumpets. That is a law for you and your children after you for all time to come.
9. Suppose you go into battle in your own land. And suppose it is against an enemy who is beating you down. Then blow a blast on the trumpets. If you do, I will remember you. I will save you from your enemies. I am the Lord your God.
10. You must also blow the trumpets when you are happy. Blow them at your appointed feasts. Blow them at your New Moon Feasts. Blow them when you sacrifice your burnt offerings. Blow them when you sacrifice your friendship offerings. They will remind me of you. I am the Lord your God."