Shemot 12:12-14

Orthodox Jewish Bible

¹² For I will pass through Eretz Mitzrayim balailah hazeh, and will strike fatally kol bechor Eretz Mitzrayim, both adam and behemah; and against all the elohei Mitzrayim I will execute judgment; I am Hashem.

¹³ And the dahm shall be for you, an ot (sign) upon the batim (houses) where ye are; and when I see the dahm, oofasachti (then I will pass over, skip, spare) you [plural], and the negef (plague, blow, striking, i.e., death of firstborn) shall not be upon you to destroy you, when I strike fatally with a blow against Eretz Mitzrayim.

¹⁴ And hayom hazeh shall be unto you for zikaron (remembrance, remembering); and ye shall keep it a Chag (Feast) to Hashem throughout your generations; ye shall keep it a Chag (Feast) by a chukkat olam.