Numbers 10:9-11

New Century Version

⁹ When you are fighting an enemy who attacks you in your own land, blow the trumpets loudly. The Lord your God will take notice of you and will save you from your enemies. ¹⁰ Also blow your trumpets at happy times and during your feasts and at New Moon festivals. Blow them over your burnt offerings and fellowship offerings, because they will help you remember your God. I am the Lord your God.”

The Israelites Move Camp

¹¹ The cloud lifted from the Tent of the Agreement on the twentieth day of the second month of the second year.