출애굽기 12:27의 미드라쉬

They countered: This may be so because it has a set time. He countered: Non-intention invalidates a sin-offering because it is written of it "It," and non-intention invalidates a Pesach because it is written of it "It" — and of a guilt-offering, too, it is written "It"! They countered: Of a Pesach and a sin-offering it is written "It" in respect to slaughtering, but in respect to a guilt-offering it is written "It" after the smoking of the devoted portions, and even if they were not smoked, it is kasher! Why, then, is it written "It"? It is sacrificed, but its exchange is not sacrificed.

"And the children of Israel traveled from Raamses" (Exodus 12:37) - Rabbi Shmuel says, "Once they left, they [immediately] baked the dough that they had kneaded, as it is stated (Ibid. 39), 'and they baked dough.'" "And it was at the end of four hundred and thirty years, etc" (Ibid. 41) - from the time that the decree was decreed; as they only spent two hundred and ten years in Egypt. And on the day that they went down to Egypt, on that same day did they go out. And on that day Yosef went out from jail. Hence this night is a joyful occasion for all of Israel, as it is written (Ibid. 42), "It is a night of watchings for the Lord." In this world, he made a miracle for them at night, since it was a temporary miracle, but in the future to come, this night will become a day, as it is stated (Isaiah 30:26), "And the light of the moon will be like the light of the sun and the light of the sun will be seven times, etc." - like the light that the Holy One, blessed be He, created at first and hid in the Garden of Eden.

Rabbi Isaac said: Nothing has been created except by the merit of worship. Abraham returned from Mount Moriah only through the merit of worship, as it is said, "We will worship, and come again to you" (Gen. 22:5). The Temple was fashioned only through the merit of worship, as it is said, "Exalt ye the Lord our God, and worship" (Ps. 99:5).