4th Commandment - Thou Shall Remember the Sabbath to keep it Holy

"Remember the Sabbath day, to keep it holy. Six days thou shall labor and do all thy work, but the seventh day is the Sabbath unto Yehovah, thy God. In it thou shall do no work: thou, nor thy son, nor thy daughter, nor thy male servant, nor thy female servant, nor thy cattle, nor the Ger who is within your gates. For in six days Yehovah made the heavens and the earth, the sea, and all that is in them, and rested the seventh day. Therefore Yehovah blessed the Sabbath day and hallowed it. (Exo 20:8-11)

Do The Gentiles Keep The Sabbath?
https://weareisrael.org/torah-201/torah-apply/keep-the-sabbath/

Becoming An Ezrach Man
https://weareisrael.org/born-again-series/journey-begins/