A low-lying cloud, luminous at night, which accompanied the Israelites during their wandering. By means of this miraculous phenomenon (Exodus 13), the Lord led the Hebrews of the Exodus for 40 years. It was a symbol of the leadership of Christ. Usually the cloud went before Israel, but in Exodus 14, it went behind, lighting their way, but presenting impenetrable darkness to the Egyptians, so that they could not attack.