Chapter 2, Mishna 1

If an acute mourner priest collects the blood of an offering, is the offering disqualified by his service?
What is the law regarding a High Priest who becomes an acute mourner (onein)?
Since the High Priest continues Temple service even in mourning, is the collection of blood by him valid, or does his status still disqualify the offering?
Can we derive by a kal vachomer that if an ordinary priest who is an acute mourner disqualifies the offering through collecting the blood, then certainly a High Priest in mourning should disqualify it as well?
Or is the High Priest different because he is permitted to continue service in other respects?
What is the law of a priest who shaves with a razor, in violation of the Torah’s prohibition?
Does the fact that he committed a prohibition disqualify an offering that he brought?
And is this case comparable to an onein or blemished priest, or is it fundamentally different
What is the status of a tevul yom priest who immersed after impurity but is awaiting nightfall, with regard to sacrificial service?
Since he may not yet eat terumah until sunset, does that mean his service in the Temple is invalid as well?
If an onein performs the burning of the red heifer, is the offering valid or disqualified?
And more generally, must one be a priest to burn the red heifer?
Is it invalidated if a priest serves while not wearing the proper priestly garments, or a priest who serves after drinking wine?
Do these cases invalidate the offering in the same way, or do they differ?
What is the law of an ordinary priest who performs the service while wearing the garments of the High Priest? Does the offering become disqualified because the garments are not appropriate for him, or is the service still valid?

Opening song: Moshe Storch leads Hallel at Beis Medrash Hancock Park

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