John Gill 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)

Now Jeremiah came in and went out among the people
Was at full liberty, and could go out of the city, and come in, when he pleased; or go into any part of it, and converse with the people, and prophesy to them; which he could not do in the latter part of Jehoiakim's reign, who sent persons after him and Baruch to take them, and they were obliged to hide themselves, yea, the Lord hid them, (Jeremiah 36:19Jeremiah 36:26) ; but now he was under no restraint, as least as yet: for they had not put him into prison ;
not yet; they afterwards did, (Jeremiah 37:15) .