24:1-14 The pot on the fire represented Jerusalem besieged by the Chaldeans: all orders and ranks were within the walls, prepared as a prey for the enemy. They ought to have put away their transgressions, as the scum, which rises by the heat of the fire, is taken from the top of the pot. But they grew worse, and their miseries increased. Jerusalem was to be levelled with the ground. The time appointed for the punishment of wicked men may seem to come slowly, but it will come surely. It is sad to think how many there are, on whom ordinances and providences are all lost.

11. set it empty … that … brass … may burn, … that … scum … may be consumed—Even the consumption of the contents is not enough; the caldron itself which is infected by the poisonous scum must be destroyed, that is, the city itself must be destroyed, not merely the inhabitants, just as the very house infected with leprosy was to be destroyed (Le 14:34-45).