Yet will I bring again the captivity of Moab in the latter days, saith the LORD. Thus far is the judgment of Moab. Will I bring again the captivity of Moab in the latter days - I have already expressed doubts (see Jeremiah 48:42) whether the Moabites were ever restored to their national distinction. The expressions in this chapter, relative to their total destruction as a people, are so strong and so frequent, that they leave little room for a limited interpretation. That many of them returned on the edict of Cyrus by virtue of which the Jews were restored, I doubt not; but neither the Ammonites, Moabites, Philistines, nor even the Jews themselves were ever restored to their national consequence. Perhaps the restoration spoken of here which was to take place in the latter days, may mean the conversion of these people, in their existing remnants, to the faith of the Gospel. Several judicious interpreters are of this opinion. The Moabites were partially restored; but never, as far as I have been able to learn, to their national consequence. Their conversion to the Christian faith must be the main end designed by this prophecy.
Commentary on the Bible, by Adam Clarke [1831].