Your wives, children, and livestock may remain here in the land Moses assigned to you on the east side of the Jordan River. But your strong warriors, fully armed, must lead the other tribes across the Jordan to help them conquer their territory. Stay with them
So Joshua called together the priests and said, “Take up the Ark of the Lord’s Covenant, and assign seven priests to walk in front of it, each carrying a ram’s horn.”
After Joshua spoke to the people, the seven priests with the rams’ horns started marching in the presence of the Lord, blowing the horns as they marched. And the Ark of the Lord’s Covenant followed behind them.