For as the new heavens and the new earth that I make shall remain before me, says YHWH, so shall your offspring and your name remain. From new moon to new moon, and from Sabbath to Sabbath, all flesh shall come to worship before me, declares YHWH.
Isaiah 66:22-23

The weekly seventh day #sabbath and the new moon observance will continue in the new earth and new heaven under the direct supervision of Messiah. Their observance is connected to proper worship in this passage. God likes it when his people keep his appointments, so....why don't we?
#shabbat #roshchodesh #torah