Leviticus 23:3-8

“Work six days. The seventh day is a Sabbath, a day of total and complete rest, a sacred assembly. Don’t do any work. Wherever you live, it is a Sabbath to GOD. “These are the appointed feasts of GOD, the sacred assemblies which you are to announce at the times set for them: “GOD’s Passover, beginning at sundown on the fourteenth day of the first month. “GOD’s Feast of Unraised Bread, on the fifteenth day of this same month. You are to eat unraised bread for seven days. Hold a sacred assembly on the first day; don’t do any regular work. Offer Fire-Gifts to GOD for seven days. On the seventh day hold a sacred assembly; don’t do any regular work.”