While riding in the Chihuahuan Desert in the late 1800s, Jim White spotted a strange cloud of smoke spiraling skyward. Suspecting a wildfire, the young cowboy rode toward the source, only to learn that the “smoke” was a vast swarm of bats spilling from a hole in the ground. White had come across New Mexico’s Carlsbad Caverns, an immense and spectacular system of caves.

As Moses was tending sheep in a Middle Eastern desert, he too saw an odd sight that grabbed his attention—a flaming bush that didn’t burn up (Exodus 3:2). When God Himself spoke from the bush, Moses realized…