An investigation into the covenant that YHVH made with the people He led out of Egypt. The Sinai covenant is a lot more complex and controversial than the Abrahamic covenant. The Sinai covenant was conceived to be a type of â€œsuzerain treatyâ€ establishing YHVH as king and Israel as the vassal. Why was it necessary for YHVH to create another covenant with Israel? He already had a covenant with their forefathers. The Sabbath is to serve as the reminder of this covenant. Why would YHVH specifically choose the Sabbath as the sign?