Jamieson, Fausset and Brown on Jeremiah 38:9

9. die for hunger in the place where he is; for ... no ... bread in ... city--(Compare Jr 37:21). He had heretofore got a piece of bread supplied to him. "Seeing that there is the utmost want of bread in the city, so that even if he were at large, there could no more be regularly supplied to him, much less now in a place where none remember or pity him, so that he is likely to die for hunger." "No more bread," that is, no more left of the public store in the city (Jr 37:21); or, all but no bread left anywhere [Maurer].