Sabbatarian n. : One who regards and keeps the seventh day of the week as holy, agreeably to the letter of the fourth commandment in the Decalogue.

Sabbatarian n. : A strict observer of the Sabbath.

Sabbatarian a. : Of or pertaining to the Sabbath, or the tenets of Sabbatarians.

Example:
How would a Sabbatarian athlete be able to compete in the Olympics, if they can't compete on Saturday?

Taxonomy
Sabbatarian, Y'Shua, Sabbaths, True Messiah, Spirit, death, Shamar, Scripture, Atonement, Israel, Judah, Truth, spiritually, YHVH, Roman, righteousness, feasts, Hashanah.

Defination from the web:
... The Sabbatarian NetworkTSN) is composed of autonomous Spirit led individuals and family ...