O ye that dwell in Moab, leave the cities, and dwell in the rock, and be like the dove that maketh her nest in the sides of the hole's mouth.
Be like the dove that maketh her nest in the sides of the hole's mouth. Doves often have their nests in "the sides" of caverns. No longer shalt thou have cities to shelter thee: thou shalt have to flee for shelter to caves and deserts (Psalms 55:6-8; Song of Solomon 2:14).