(Mishnah): Five things may be brought but not eaten in a state of Tum'ah - 1) The Omer; 2) the Two Breads of Shavu'os; 3) the Showbreads; 4) public Shelamim offerings; 5) the goats of Rosh Chodesh.

A Pesach that was brought in a state of Tum'ah may be eaten in Tum'ah, as the entire purpose of bringing it was to eat it.

(Gemara) - Question: May all public sacrifices not be brought in a state of Tum'ah?

Answer: The Mishnah comes to teach that other sacrifices may be brought but may not be eaten in Tum'ah.

Question: (There are two opinions in Maseches Menachos as to the primary part of the Shtei HaLechem on Shavu'os - R. Akiva says that it is the bread and R. Shimon ben Nanas says that it is the sheep.) According to both opinions, only one part is primary - so why does our Mishnah not list four things, instead of five?!

Answer: Our Tana was concerned for both opinions so he taught five.

One Beraisa taught that we learn from the Korban Pesach that all public sacrifices override Tum'ah. Another Beraisa taught that each sacrifice has its own source that teaches that it overrides Tum'ah.

According to the opinion that all public sacrifices learn from the Korban Pesach - Just as "in its time'' of the Korban Pesach overrides Tum'ah, so "in its time'' that is stated about all of them overrides Tum'ah.

Question: According to the opinion that each sacrifice has its own source, what is the source?

Answer: He follows the following Beraisa -

Question: Rebbi says - What is learned from the Pasuk that states (Vayikra 23, 44), "And Moshe spoke about the Moadim (festivals) of Hash-m...''?

Answer: We have learned regarding the Pesach and the Tamid offering that they override Shabbos, as the Pasuk about them states, "at its time''.

Question: What is the source of this law for other public sacrifices?

Answer: The Pasuk states (Bamidbar 29, 39), "These you shall perform for Hash-m on your festivals''.

Question: But what is the source for the Omer and the Shtei Halechem and the sacrifices that accompany them?

Answer: When the Pasuk states, "And Moshe spoke about the Moadim of Hash-m to the children of Israel'' - this fixed for them an obligation that they should all be brought [even] in a state of Tum'ah.

Question: Should we also say that they can be eaten in a state of Tum'ah?

Answer: No, as the Pasuk states (Vayikra 7, 19), "And the flesh that touches anything Tamei, you shall not eat''.

Question: Perhaps this should also apply to the Korban Pesach?

Answer: No, as the entire purpose of bringing it was to eat it.