Isaiah 66:23

“And it shall come to pass, that from one new moon to another, &c.] Or, “from month in its months”f1322, The Targum is, “in the time of the beginning of the “month in its month”;” that is, in every day of the month; or rather every month: and from one sabbath to another; the form of expressions the same as before; and in like manner paraphrased in the Targum; and signifies either every day in the week; or rather every sabbath, or first day in the week; for we are not to imagine that new moons and Jewish sabbaths, that is, seventh day sabbaths, shall now be observed, which have been long abolished, (<510216>Colossians 2:16) but, as New Testament officers of churches are, in the preceding…”

“Literally, "As often as the new moon (shall be) in its own new moon," that is, every month (Zac 14:16). sabbath--which is therefore perpetually obligatory on earth. all flesh-- (Psa 65:2; Psa 72:11). before me--at Jerusalem (Jer 3:16-17).”

“And it shall come to pass - As the prophet closes the book and winds up his whole prophecy, he directs the attention to that future period which had occupied so much of his attention in vision, when the whole world should be acquainted with the true religion, and all nations should worship Yahweh. Of such a book there could be no more appropriate close; and such a contemplation especially became the last prophetic moments of the ‘evangelical prophet’ Isaiah. From one new moon to another - Margin, ‘New moon to his new moon.’ The Hebrew literally is, ‘As often as the month cometh in its month;’ that is, in its time, every month, every new moon (Gesenius, Lexicon, on the word מדי midēy). The…”

“And, &c. - In the gospel - church there shall be as constant and settled a course of worship (though of another nature) as ever was in the Jewish church: Christians are not bound to keep the Jewish sabbaths or new - moons. But New Testament worship is expressed by Old Testament phrases. The Jews were only obliged to appear three times in a year at Jerusalem, but (saith the prophet) the gospel - church shall worship God from one sabbath to another. Next: Jeremiah Chapter 1”

“that from: Isa 1:13, Isa 1:14; Kg2 4:23; Psa 81:3, Psa 81:4; Eze 46:1, Eze 46:6; Col 2:16, Col 2:17 one new: etc. Heb. new moon to his new moon, and from sabbath to his sabbath shall all: Psa 65:2, Psa 86:9; Zac 8:20-23, Zac 14:14, Zac 14:16; Mal 1:11; Joh 4:23; Rev 15:4 Isaiah 66:24”

“"And it will come to pass: from new moon to new moon, and from Sabbath to Sabbath, all flesh will come, to worship before me, saith Jehovah." New moons and Sabbaths will still be celebrated therefore; and the difference is simply this, that just as all Israel once assembled in Jerusalem at the three great feasts, all flesh now journey to Jerusalem every new moon and every Sabbath. דּי (construct דּי) signifies that which suffices, then that which is plentiful (see Isa 40:16), that which is due or fitting, so that (שׁבת) חדשׁ מדּי (with a temporal, not an explanatory min, as Gesenius supposes) signifies "from the time when, or as often as what is befitting to the new moon (or Sabbath) occurs"…”