At Sinai, the Sabbath is an art form. It’s about tapping into the rhythm of creation; in Deuteronomy, the Sabbath is an act of defiance against Pharaoh and his slave drivers. At Sinai it’s a way of saying yes to God and his world; in Deuteronomy it’s a way of saying no to Egypt and its system. At Sinai it’s an invitation to join God in his delight; in Deuteronomy it’s a warning to stay away from Egypt’s way of life.