Sticking to the literal interpretation also allows for clearer understanding of subsequent passages. 16 Wherefore the children of Israel shall keep the sabbath, to observe the sabbath throughout their generations, for a perpetual covenant.
17 It is a sign between me and the children of Israel for ever: for in six days the LORD made heaven and earth, and on the seventh day he rested, and was refreshed. (Exod. 31:16-17 KJV)