The 7th day of rest according to Genisis has been lost in antiquity. No one can show exactly when the sabbath is or was and that it has been continued from Adam to present day. The most that can be asserted is that according to Jewish tradition, the sabbath falls on particular day. None but God knows the actual day of the sabbath because only God was around for the first sabbath
Really? Why would God place a commandment on His people when they could not perform it properly? Clay calendars go back to Moses day showing the seventh day. Did Moses keep the real Sabbath , being as he met God face to face and received the Ten Commandments? Did Jesus keep the real Sabbath? You're saying something is too hard for you to do when the proof is tight there on your calendar. Why do we keep a 7-day week? It has nothing to do with celestial events, but only because God instituted it.
>> “The 7th day of rest according to Genisis has been lost in antiquity. No one can show exactly when the sabbath is or was and that it has been continued from Adam to present day” <<
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That is an absurd assertion.
What event could possibly cause the entire world to lose count of the days of the week? Think about it.