Joshua 6
6 Ref Joshua the son of Nun called the priests, and said to them, Take up the ark of the covenant, and let seven priests bear seven trumpets of rams' horns before the ark of Yahweh.
7 Ref They said to the people, Pass on, and compass the city, and let the armed men pass on before the ark of Yahweh.
8 Ref It was so, that when Joshua had spoken to the people, the seven priests bearing the seven trumpets of rams' horns before Yahweh passed on, and blew the trumpets: and the ark of the covenant of Yahweh followed them.