Deuteronomy 30:3 - Ellicott's Commentary On The Whole Bible

The Lord thy God will turn thy captivity. — The word “turn” is not active as we should expect (in the Hebrew), but neuter, and upon this fact the Rabbis have grounded the following observation that “in some way the Shechinah is abiding upon Israel during the stress of their captivity, and whensoever they are redeemed, He has prescribed Redemption for Himself, that He will return with them.” And further, that the day of the gathering of the captivity is great, and attended with difficulty; as though He Himself must be there to take hold visibly of the hand of each man, and bring him from his place, as it is said, “And ye shall be gathered one by one, O ye children of Israel” (Isaiah 27:12). But it is observed that the same form of the verb is employed in Jeremiah with respect to Moab (Jeremiah 48:47). This note at least shows that the Jews look for the fulfilment of this prophecy as a thing yet to come.