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).

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