Midrash su Deuteronomio 16:2

"shall you take": What is the intent of this? (i.e., it seems redundant.) It is written (Devarim 16:2) "And you shall slaughter the Pesach for the L rd your G d, sheep and cattle" — sheep for the Pesach (offering) and cattle for the chagigah (the festive offering.) You say this, but perhaps (the meaning is) both for the Pesach? And how would I understand (Exodus 12:5) "an unblemished lamb, a male"? As referring to the Pesach of Egypt, but Pesach for all the generations he could bring either (sheep or cattle). It is, therefore, written "Of the lambs or of the goats shall you take." Why (the redundant) shall you take?" That the Pesach for all the generations be brought only from the sheep or from the goats (but not from the cattle). These are the words of R. Yoshiyah. R. Yonathan says: sheep for the Pesach and cattle for the chagigah. You say this, but perhaps (the meaning is) both for the Pesach? And how would I understand (Exodus 12:5) "an unblemished lamb, a male"? As referring to the Pesach of Egypt, but the Pesach for all the generations he could bring either (sheep or cattle). It is, therefore, written Ibid. 13:5) "then (in Canaan) you shall perform this service (of Pesach) on this month" — As the service that you performed in Egypt (i.e., from the sheep or from the goats), thus shall you perform in all the generations. These are the words of R. Yonathan. R. Eliezer says: Sheep for the Pesach and cattle for the chagigah. You say this, but perhaps both are for the Pesach? And how would I understand "an unblemished lamb, etc."? As referring to the Pesach of Egypt, but for the Pesach of all the generations (I would say that he brings from both. It is, therefore, written (Ibid. 12:24) "And you shall keep this thing as a statute for you and for your children forever." This refers to the Pesach of all the generations. How, then, am I to understand "And you shall slaughter the Pesach to the L rd your G d, sheep and cattle"? Sheep for the Pesach and cattle for the chagigah. R. Akiva says: One verse states "And you shall slaughter the Pesach to the L rd your G d, sheep and cattle," and another, "From the sheep and from the goats shall you take." How are these two verses to be reconciled? This is a (hermeneutical) rule, viz. If two verses in the Torah seem to be mutually contradictory, let them remain in their place until a third verse comes to decide between them. It is, therefore, written (Ibid. 12:21) "Draw forth and take unto yourselves sheep for your families and slaughter the Pesach." R. Yishmael says: That verse (Devarim 16:2) ("sheep and cattle") speaks of the chagigah that is brought on Pesach. You say this, but perhaps it speaks of the Pesach itself? "An unblemished lamb, a male" speaks of the Pesach itself. How, then, am I to understand "And you shall slaughter the Pesach to your G d (sheep and cattle)"? As referring to the chagigah that comes with the Pesach. Rebbi says: That verse is speaking of an offering that comes from either sheep or cattle, i.e., peace-offerings (shelamim) — whence they ruled: A Pesach "surplus" is used for peace-offerings. (i.e., in the instance of an intended Pesach offering which was lost and replaced by another, and then found.)

11) And whence is it derived that if one vowed to bring peace-offerings, he may do so only with chullin? From (Devarim 16:2): "And you shall offer a Pesach-offering to the L–rd your G d, sheep and cattle." Now does the Pesach offering not come only from lambs and kids? Why, then, is it written "sheep and cattle"? To liken everything that comes from sheep and cattle to the Pesach offering, viz.: Just as the Pesach offering is mandatory and comes only from chullin, (there having been no consecrations and no tithe at the time of the exodus from Egypt,) so, everything that is mandatory comes only from chullin — so that if one vowed to bring a thank-offering or a peace-offering, since they are mandatory, (having been vowed), they are to be brought only from chullin; and libations, in all instances, (even if he specified "from the tithe") are to be brought only from chullin, (their not having been likened to peace-offerings, as the thanksgiving loaves were).

(Devarim 16:2) "And you shall slaughter a Pesach": Its slaughtering must be in the name of Pesach; otherwise, it is unfit.