Sunset Cloud Village, Red Land, China. Photo by Peng Jiang/2012 National Geographic Photography Contest.) Click pic to enlarge!
I do not want you to be unaware, brothers and sisters, that our ancestors were all under the cloud and all passed through the sea, and all of them were baptized into Moses in the cloud and in the sea. All ate the same spiritual food, and all drank the same spiritual drink, for they drank from a spiritual rock that followed them, and the rock was the Christ. Yet God was not pleased with most of them, for they were struck down in the desert.
These things happened as examples for us, so that we might not desire evil things, as they did. Do not grumble as some of them did, and suffered death by the destroyer. These things happened to them as an example, and they have been written down as a warning to us, upon whom the end of the ages has come. Therefore, whoever thinks he is standing secure should take care not to fall.
–St. Paul (1 Corinthians 10:1-6, 10-12)