Prior to Moses, there was no command for sabbath keeping. Look at Deuteronomy 5:1-15 which gives the commandments to Israel. 2 The Lord our God made a covenant with us in Horeb. 3 The Lord did not make this covenant with our fathers, but with us, those who are here today, all of us who are alive.
Nehemiah 9:13 - “Then You came down on Mount Sinai, And spoke with them from heaven; You gave them just ordinances and true laws, Good statutes and commandments. 14 “So You made known to them Your holy sabbath, And laid down for them commandments, statutes and law, Through Your servant Moses.
I rest on Sunday, which is my day off from work, but I don't consider that to be keeping the sabbath under the law. Now of course, I've basically been condemned by certain SDA's and Armstrongites (those who attend the Worldwide church of God) for working on Saturday. They told me I was not keeping the sabbath day and was "willfully sinning" by failing to do so. That is absolute LEGALISM! I am not an Israelite under the old covenant law.