Charles Ellicott Commentary Jeremiah 37:4

"Now Jeremiah came in and went out among the people; for they had not put him into prison." — Jeremiah 37:4 (ASV)

Jeremiah came in and went out among the people. —The statement is made in reference to the event narrated in Jeremiah 37:15. He was free when the king’s message came to him: it was his answer to that message that led to his imprisonment.