Korban Pesach - Hebrew Bible

Hebrew Bible

The blood of this sacrifice sprinkled on the door-posts of the Israelites was to be a sign to God, when passing through the land to slay the first-born of the Egyptians that night, that he should pass by the houses of the Israelites (Exodus 12:1-28) This is called in the Mishnah the "Passover of Egypt" (Pesaḥ Miẓrayim in M.Pesach ix. 5). It was ordained, furthermore (Exodus 12:24-27), that this observance should be repeated annually for all time once the Israelites entered into their promised land. Exodus 12:25 "It will come to pass when you come to the land which the Lord will give you, just as He promised, that you shall keep this service (NKJV). This so-called "Pesaḥ Dorot," the Passover of succeeding generations (Mishnah Pesach l.c.), differs in many respects from the Passover of Egypt (Pesaḥ Miẓrayim). In the pre-exilic period, however, Passover was rarely sacrificed in accordance with the legal prescriptions (comp. II Chron. xxxv. 18).

The Lord spoke to Moses in the wilderness of Sinai, on the first new moon of the second year following the exodus from the land of Egypt, saying: Let the Israelite people offer the passover sacrifice at its set time: you shall offer it on the fourteenth day of this month, at twilight, at its set time; you shall offer it in accordance with all its rites and rules

— Num. 9:1–3, JPS translation