least of the flock - the weakest and humblest of the Chaldean host. Compare Jer 6:3, where the hostile leaders and their hosts are called “shepherds and their flocks.”
draw ... out - “shall drag them away captive” [Grotius]; shall drag them to and fro, as a lion (Jer 49:19) does feeble sheep [Maurer].
with them - that is, the habitation which they possess.