Fire, in the spiritual sense, can mean either love or hatred depending on the context, just as natural fire can be either comforting in keeping you warm, or scary in burning down your house. Our language reflects this, too -- we use concepts like a smoldering hatred or a burning love. So fire signifies a love, either a good love of the neighbor and to the Lord, or, in a bad sense, selfish love of oneself that, if unchecked by conscience, leads to hatred of anyone that opposes it.

Jeremiah represents the Lord. (Arcana Coelestia 2838[2]).

In Jeremiah 13:7, Jeremiah here signifies the state of the church. (Divine Love and Wisdom 15[4]).

In Jeremiah 38:6, his representation is that same as Joseph's when he was thrown into the pit by his brothers -- that divine truths were rejected by falsities. (Arcana Coelestia 4728).

(Odkazy: Arcana Coelestia 2838 [1-4], 4728 [1-8]; Divine Love and Wisdom 15; Jeremiah 1:1)