Adam Clarke on Jeremiah 14:3

Their nobles have sent their little ones - So general was this calamity, that the servants no longer attended to their lords, but every one was interested alone for himself; and the nobles of the land were obliged to employ their own children to scour the land, to see if any water could be found in the tanks or the pits. In the dearth in the time of Elijah, Ahab the king, and Obadiah his counselor, were obliged to traverse the land themselves, in order to find out water to keep their cattle alive. This and the three following verses give a lively but distressing picture of this dearth and its effects.