Jamieson, Fausset and Brown on Zechariah 8:20

20. (Is 2:3; Mi 4:2).

Thus saith the Lord of hosts--a preface needed to assure the Jews, now disheartened by the perils surrounding them, and by the humble aspect of the temple. "Unlikely as what follows may seem to you, Jehovah of hosts, boundless in resources, saith it, therefore it shall be so." Just before Christ's coming, a feeling grew up among the heathen of the unsatisfactoriness of their systems of religion and philosophy; this disposed them favorably towards the religion of the Jew, so that proselytes embraced the worship of Jehovah from various parts of Asia; these again were predisposed to embrace Christianity when it was preached to them (Ac 2:9-12, 41). But the full accomplishment of the conversion of the Gentiles foretold here is reserved till "Jerusalem" (Zec 8:22) becomes the center of Christianized Jewry (Ro 11:12, 15).