Apocalypse Revealed #203
203. "'Would that you were cold or hot.'" This symbolically means that it would be better for them either to deny wholeheartedly the holy things of the Word and church, or to acknowledge them wholeheartedly. We will give the reason in the exposition that follows next.
Cities
Cities of the mountain and cities of the plain (Jeremiah 33:13) signify doctrines of charity and faith.
(Verweise: Arcana Coelestia 2418)