Jeremiah 37-39

In chapter 38 four men grabbed Jeremiah and lowered him into a dry cistern; leaving him to die. The record doesn't indicate how long Jeremiah was there but I wonder what he did in that pit?  Did he set the example for Paul and Silas and sing songs of God's praise? Did he continue to shout out God's message for the people to surrender rather than die by the sword? God did not forget his faithful prophet and in due time raised Jeremiah from that tomb to walk in new freedom.
It took me about 15 minutes to read this passage.
Stuart