And it shall come to pass— The meaning is, that in consequence of the creating and perfecting of these new heavens and new earth; that is to say, of establishing this new and spiritual oeconomy; all men at length throughout the world, acknowledging and embracing the true religion, should with great zeal, at the stated times, publicly worship and adore God, and that with spiritual worship. For God is a spirit and they who worship him acceptably under the new covenant, must worship him in spirit and in truth. See Zechariah 14:16. The meaning of the phrase, From one new moon, &c. is, at new moons and sabbaths, or, at certain and appointed days.
Related Commentaries of Isaiah 66:23
Isaiah 66:23
23 And it shall come to pass, that from one new moon to another, and from one sabbath to another, shall all flesh come to worship before me, saith the LORD.