The word "Sabbath" first appears in Exodus 16:23 - Then he said to them, “This is what the Lord has said: ‘Tomorrow is a
Sabbath rest, a holy Sabbath to the Lord. Bake what you will bake today, and boil what you will boil; and lay up for yourselves all that remains, to be kept until morning.
*Now if every man from Adam to Moses kept the Sabbath, why is the Hebrew word for the weekly Sabbath never found in the book of Genesis? *Why is no one before Moses ever being told to keep the Sabbath? *Why are there no examples of anyone keeping the Sabbath before Moses?
*Why were the Patriarchs never instructed about the Sabbath, but were instructed regarding: offerings: Genesis 4:3-4, Altars Genesis 8:20, Priests: Genesis 14:18, Tithes: Genesis 14:20, Circumcision: Genesis 17:10, Marriage: Genesis 2:24 and Genesis 34:9. *Why would God leave out the Sabbath command in Genesis if it was for everyone to keep before Moses?
Although God's rest on the seventh day (Genesis 2:3) did foreshadow a future Sabbath law, there is no Biblical record of the Sabbath before the children of Israel left the land of Egypt.
*Nowhere in Scripture is there any hint that Sabbath keeping was practiced from Adam to Moses.