Exod. 12:15–20; 23:15; Lev. 23:6–7; Num. 28:17–18; 2 Kings 25:26

Exod. 12-15–20

15Seven days you shall eat unleavened bread; on the very first day you shall remove leaven from your houses, for whoever eats leavened bread from the first day to the seventh day, that person shall be cut off from Israel.

16You shall celebrate a sacred occasion on the first day, and a sacred occasion on the seventh day; no work at all shall be done on them; only what every person is to eat, that alone may be prepared for you. 17You shall observe the [Feast of] Unleavened Bread, for on this very day I brought your ranks out of the land of Egypt; you shall observe this day throughout the ages as an institution for all time. 18In the first month, from the fourteenth day of the month at evening, you shall eat unleavened bread until the twenty-first day of the month at evening. 19No leaven shall be found in your houses for seven days. For whoever eats what is leavened, that person shall be cut off from the community of Israel, whether he is a stranger or a citizen of the country. 20You shall eat nothing leavened; in all your settlements you shall eat unleavened bread.

Exod. 23-15

15You shall observe the Feast of Unleavened Bread—eating unleavened bread for seven days as I have commanded you—at the set time in the month of Abib, for in it you went forth from Egypt; and none shall appear before Me empty-handed.

Lev. 23-6–7

6and on the fifteenth day of that month the Lord’s Feast of Unleavened Bread. You shall eat unleavened bread for seven days. 7On the first day you shall celebrate a sacred occasion- you shall not work at your occupations. 8Seven days you shall make offerings by fire to the Lord. The seventh day shall be a sacred occasion- you shall not work at your occupations.

Num. 28-17–18

17and on the fifteenth day of that month a festival. Unleavened bread shall be eaten for seven days. 18The first day shall be a sacred occasion- you shall not work at your occupations.

2 Kings 25-26

26And all the people, young and old, and the officers of the troops set out and went to Egypt because they were afraid of the Chaldeans.

Tanakh, The Holy Scriptures, (Philadelphia, Jerusalem- Jewish Publication Society) 1985.