But the seventh day is the sabbath of the LORD thy God: Exodus 20:10
Egypt (Oxyrhynchus Papyrus) (200-250 A.D.)
"Except ye make the sabbath a real sabbath (sabbatize the Sabbath," Greek), ye shall not see the Father."
The oxyrhynchus Papyri, pt,1, p.3, Logion 2, verso 4-11 (London Offices of the Egypt Exploration Fund, 1898).