TSK · Exodus 13:6

"'Seven days you shall eat unleavened bread; even the first day you shall put away yeast out of your houses, for whoever eats leavened bread from the first day until the seventh day, that soul shall be cut off from Israel.

But you shall offer an offering made by fire to Yahweh seven days. In the seventh day is a holy convocation: you shall do no regular work.'"