Perhaps your 6 literal 24-hour day belief is based on the imperfections of different translations?
Again, when the sense of Scripture makes perfect sense, seek no other sense. You have to look at how the Jewish people of that day read the text. They would have read that as 6 literal days. That is where I get my belief.
Also, the covenant changed when Christ died on the cross so they would fall under the new covenant if they chose to believe that Christ was their Savior.