Cities
Cities of the mountain and cities of the plain (Jeremiah 33:13) signify doctrines of charity and faith.
(References: Arcana Coelestia 2418)
Exodus 28:4
4
These are the garments which they shall make: a breastplate, and an ephod, and a robe, and a coat of checker work, a turban, and a sash: and they shall make holy garments for Aaron your brother, and his sons, that he may minister to me in the priest's office.