Many days and years, Heb. Days above a year, i.e. a year and some days; which notes either,
1. The time from this prophecy to the beginning of this judgment; or rather,
2. The time of the continuance of it, that it should last for above one year; as indeed this did, and no longer; for Hezekiah reigned in all but twenty-nine years, 2 Kings 18:2, and Sennacherib came in his fourteenth year, and after his defeat and departure God promised and added to him fifteen years more, 2 Kings 20:6. The vintage shall fail, during the time of the Assyrian invasion. And this commination is here added to qualify the foregoing promise, and to warn them, that although God would give them so good a king, and there should be some reformation of their former abuses under the government of Ahaz; yet as there were many sins among them not yet repented of, so they should be severely chastised for them. The gathering, to wit, of the other fruits of the earth; as that feast which was observed after the gathering of all the fruits was called the feast of ingathering, Exodus 23:16.