The Scripture tells us that when Joshua and the Israelites arrived at the gates of Jericho, they could not enter. The walls of the city were too steep for any one person to climb; too strong to be taken down with brute force. And so they sat for days, unable to pass on through.

But God had a plan for his people. He told them to stand together and march together around the city, and on the seventh day he told them that when they heard the sound of the ram's horn, they should speak with one voice. And at the chosen hour, when the horn sounded and a chorus of voices cried out together, the mighty walls of Jericho came tumbling down.