The rejection of Israel and the desolation of the promised inheritance were not to be the end of God’s dispensations. The closing words of the address therefore are words of comfort and promise. Compare marginal reference and Deu 4:29 ff; 1Ki 8:46-50.
The chastisements of God would lead the nation to repent, and thereupon God would again bless them.
Will turn thy captivity - Will change or put an end to thy state of captivity or distress (compare Psa 14:7; Psa 85:2; Jer 30:18). The rendering of the Greek version is significant; “the Lord will heal thy sins.”
The promises of this and the following verses had no doubt their partial fulfillment in the days of the Judges; but the fact that various important features are repeated in Jer 32:37 ff, and in Eze 11:19 ff, Eze 34:13 ff, Eze 36:24 ff, shows us that none of these was regarded as exhausting the promises. In full analogy with the scheme of prophecy we may add that the return from the Babylonian captivity has not exhausted their depth. The New Testament takes up the strain (e. g. in Rom. 11), and foretells the restoration of Israel to the covenanted mercies of God. True these mercies shall not be, as before, confined to that nation. The “turning again of the captivity” will be when Israel is converted to Him in whom the Law was fulfilled, and who died “not for that nation only,” but also that he might “gather together in one the children of God that were scattered abroad” Joh 11:51-52. Then shall there be “one fold and one shepherd” Joh 10:16. But whether the general conversion of the Jews shall be accompanied with any national restoration, any recovery of their ancient prerogatives as the chosen people; and further, whether there shall be any local replacement of them in the land of their fathers, may be regarded as of “the secret things” which belong unto God Deu 29:29; and so indeed our Lord Himself teaches us Act 1:6-7.
Circumcise thine heart - Compare Deu 10:16 note; Jer 32:39; Ezra 11:19.