Shemos/Exodus 13:1 - 16
Bamidbar/Numbers 28:19 - 25
1 Hashem spoke to Moses, saying: 2 "Sanctify to Me every firstborn, the first issue of every womb among the Children of Israel, of man and beast, is Mine."
3 Moses said to the people, "Remember this day on which you departed from Egypt, from the house of bondage, for with a strong hand God removed you from here, and therefore chametz may not be eaten. 4 Today you are leaving, in the month of springtime. 5 And it shall come to pass when Hashem shall bring you to the land of the Canaanite, the Hittite, the Emorite, the Hivvite, and the Jebusite, which He swore to your forefathers to give you — a land flowing with milk and honey — you shall perform this service in this month. 6 For a seven-day period shall you eat matzos, and on the seventh day there shall be a festival to Hashem. 7 Matzos shall be eaten throughout the seven-day period; no chametz may be seen in your possession, nor may leaven be seen in your possession in all your borders. 8 And you shall tell your son on that day, saying, 'It is because of this that Hashem acted on my behalf when I left Egypt.' 9 And it shall be for you a sign on your arm and a reminder between your eyes — so that Hashem's Torah may be in your mouth — for with a strong hand Hashem removed you from Egypt. 10 You shall observe this decree at its designated time from year to year.
11 "It shall come to pass, when Hashem will bring you to the land of the Canaanites, as He swore to you and your forefathers, and He will have given it to you; 12 then you shall set apart every first issue of the womb to Hashem, and of every first issue that is dropped by livestock that belong to you, the males are Hashem's. 13 Every first issue donkey, you shall redeem with a lamb or kid; if you do not redeem it, you shall axe the back of its neck. And you shall redeem every human firstborn among your sons. 14 And it shall be when your son will ask you at some future time, 'What is this?' you shall say to him, 'With a strong hand Hashem removed us from Egypt form the house of bondage. 15 And it happened when Pharaoh stubbornly refused to send us out, that Hashem killed all the firstborn in the land of Egypt, from the firstborn of man to the firstborn of beast. Therefore I offer to Hashem all male first issue of the womb, and I shall redeem all the firstborn of my sons. 16 And it shall be a sign upon your arm, and an ornament between your eyes, for with a strong hand Hashem removed us from Egypt.'"
19 You shall offer a fire-offering, an elevation-offering to Hashem - two young bulls, one ram, seven male lambs within their first year, unblemished shall they be for you. 20 And their meal-offering - fine flour mixed with oil; you shall make three tenth-ephah for each bull and two tenth-ephah for each ram. 21 One tenth-ephah shall you make for each lamb, of the seven lambs. 22 And one he-goat for a sin-offering, to provide you atonement. 23 Aside from the elevation-offering of the morning that is for the continual elevation-offering shall you make these. 24 Like these shall you make each day of the seven-day period - food, a fire-offering, a satisfying aroma to Hashem; in addition to the continual elevation-offering shall it be made, and its libation. 25 The seventh day shall be a holy convocation for you; you shall not do any laborious work.