Jeremiah 10:25

Jeremiah 10:25. Pour out thy fury upon the heathen that know thee not, and upon the families that call not on thy name: for they have eaten up Jacob, and devoured him, and consumed him, and have made his habitation desolate.

So he asks God, instead of smiting his own children, to smite his enemies, and knowing what we do about the Babylonians, we do not wonder that Jeremiah put up such a prayer as that.