Commentaries
3:12-20 See God's readiness to pardon sin, and the blessings reserved for gospel times. These words were proclaimed toward the north; to Israel, the ten tribes, captive in Assyria. They are directed how to return. If we confess our sins, the Lord is faithful and just to forgive them. These promises are fully to come to pass in the bringing back the Jews in after-ages. God will graciously receive those that return to him; and by his grace, he takes them out from among the rest. The ark of the covenant was not found after the captivity. The whole of that dispensation was to be done away, which took place after the multitude of believers had been greatly increased by the conversion of the Gentiles, and of the Israelites scattered among them. A happy state of the church is foretold. He can teach all to call him Father; but without thorough change of heart and life, no man can be a child of God, and we have no security for not departing from Him.
16. they shall say no more—The Jews shall no longer glory in the possession of the ark; it shall not be missed, so great shall be the blessings of the new dispensation. The throne of the Lord, present Himself, shall eclipse and put out of mind the ark of the covenant and the mercy seat between the cherubim, God's former throne. The ark, containing the two tables of the law, disappeared at the Babylonian captivity, and was not restored to the second temple, implying that the symbolical "glory" was to be superseded by a "greater glory" (Hag 2:9).
neither … visit it—rather, "neither shall it be missed" (so in Jer 23:4).
done—rather, "neither shall it (the ark) be made (that is, be restored) any more" [Maurer].