The New Moons in Colossians is connected to feast days in the Greek. The New Moon in Isa66:23 means month in Greek because there are no more animal sacrifices and will be none in the New Heaven and New Earth, where God’s Sabbath continues according to the Lord.
Col2:16 for new moon
†νουμηνία noumēnía, noo-may-nee'-ah; feminine of a compound of
G3501 and
G3376(as noun by implication, of
G2250);
the festival of new moon:—new moon.
Isa66:23 meaning for new moon
חֹדֶשׁ chôdesh, kho'-desh; from
H2318; the new moon; by implication, a month:—month(-ly), new moon.
Nothing to do with festivals or animal sacrifices because its not the same, just as the weekly Sabbath has nothing to do with animal sacrifices and festivals or food or drink offerings but only those connected to the annual sabbaths feast days that do, it is not the Sabbath of the Lord and the holy day of the Lord. Isa 58:18 Exo20:10
Isa66:23 does not say we will be coming before the Lord to worship Him everyday, God knows the difference between the Sabbath, every seventh day Exo20:10 and everyday a word that was not used. The saints will be working in heaven according to Scripture, building houses, tending to vineyards, not being in front of Jesus 24/7 according to our Lord’s own Words, the Sabbath will continue and the word here means every Sabbath, not every day.
שַׁבָּת shabbâth, shab-bawth'; intensive from
H7673; intermission, i.e (specifically) the Sabbath:—(+ every) sabbath.
What God made at Creation Exo20:11 Mark2:27 for man is not against man, it’s not the God I know. No man can take away God's blessings and sanctification God connected with the seventh day Sabbath Gen2:3 Exo20:11 Eze20:12 because no man is above God. Paul is misunderstood and many use out of context as we are told 2Peter3:16 and he is not God. Making the servant greater than the master is not something Paul said he was. Rom1:1