Josué 6

1Now Jericho was straitly shut up because of the children of Israel: none went out, and none came in.
13And seven priests bearing seven trumpets of rams’ horns before the ark of the LORD went on continually, and blew with the trumpets: and the armed men went before them; but the rereward came after the ark of the LORD , the priests going on, and blowing with the trumpets.