Do you remember those old commercials that talked about image being everything? They're dated, but more accurate than ever -- people have adjusted to be as concerned about their social media images, but everyone remains concerned about image. We want to look like we're keeping up with everything and everyone.
What a surprise it must've been to Joshua to be instructed to wage war on Jericho by walking around the city. Rams' horns were to be their weapons, and the Lord would see to the victory. This isn't how conventional armies wage war. What would the others think? Would word get out that Israel can't win a battle conventionally?
Joshua was so focused on being obedient to the Lord that he wasn't concerned about what this might look like to the outside world. The Lord called and directed, so he followed.
If we truly believe that God created the universe and calls us into lives of discipleship, then what do the opinions of others matter? Only one opinion truly matters in the end, so let us listen to that voice, and that voice alone, and may the others fade into the background.