Cities of the mountain and cities of the plain (Jeremiah 33:13) signify doctrines of charity and faith.

(References: Arcana Coelestia 2418)

8362. 'And hearken to His commandments' means obedience and a life in keeping with forms of the good of faith, which are interior aspects of the Church. This is clear from the meaning of 'hearkening' as obedience and life; and from the meaning of 'commandments' as the inner truths of the Word, dealt with in 3382, thus truths of faith that are interior aspects of the Church. These truths are called forms of the good of faith because they are matters of the will.