I. Old Testament
In the preexilic period, Sabbath (שַׁבָּת/šabbāt) meant the day of the full moon; from the Exile on, it denoted a weekly day of rest. The origins of this day of rest go back to the early days of Exile. The earliest laws regarding the preexilic day of rest appear in the Book of the Covenant (Exod 23:10) and the cultic code in Exod 34:18–23, 25f. (v. 21) (Law and legislation: III). In the Book of the Covenant, the commandment to ¶ observe a day of rest is part of the privilege law of Y…