Worship, serve and seek every day. However only one day was set apart at Creation. I guess it comes down to if one believes the Commandments are still valid.
Matt 5:18, "For truly I say to you; Unless heaven and earth passes away, one yodh--the smallest of the letters--will in no way pass from the Law, until all things are perfected."
Revelation 21:1-2, "And I saw a new heaven and a new earth, for the first heaven and the first earth had passed away, and there was no more sea. And I, Yahanan, saw the holy city, YHWH Shammah, coming down from YHWH out of heaven, prepared as brides adorned for their husbands. And I heard a great voice out of heaven, saying: Behold, the tabernacle of YHWH is with men, and He will dwell with them, and they will be His people, and YHWH Himself will be with them, and be their Father.”
Matt 5:18, "For truly I say to you; Unless heaven and earth passes away, one yodh--the smallest of the letters--will in no way pass from the Law, until all things are perfected."
Revelation 21:1-2, "And I saw a new heaven and a new earth, for the first heaven and the first earth had passed away, and there was no more sea. And I, Yahanan, saw the holy city, YHWH Shammah, coming down from YHWH out of heaven, prepared as brides adorned for their husbands. And I heard a great voice out of heaven, saying: Behold, the tabernacle of YHWH is with men, and He will dwell with them, and they will be His people, and YHWH Himself will be with them, and be their Father.”