If the Rabanan enacted a Gezeirah so that a person should not accidentally
come into the Heichal, why did they not make such a Gezeirah on Yom Kipur as
well? On Yom Kipur, it is forbidden mid'Oraisa to go into the Heichal while
the Ketores is being offered in the Kodesh ha'Kodashim (44a). Nevertheless,
there is no Isur, not even mid'Rabanan, to be between the Ulam and
Mizbe'ach! Why did the Rabanan not make the same Gezeirah that they made for
the rest of the year, while the Ketores is being offered in the Heichal, to
forbid entry into the area between the Ulam and Mizbe'ach?
(a) The RITVA (44a) points out that Rashi (DH Aval b'Sha'as Haktarah)
addresses this question by saying that since the outer Mizbe'ach is "far
from where the Ketores is burned on Yom Kipur" (i.e. the Kodesh haKodashim),
there is no need to prohibit being in the area between the Ulam and the
Mizbe'ach.
Why not? Even though that area is far from the Kodesh ha'Kodashim where the
Kohen Gadol burns the Ketores, it is *not* far from the Heichal, which is
still forbidden to enter mid'Oraisa!
The Ritva explains that the only fear is that someone will try to peer into
the Heichal in order to see the Avodah of the Ketores, and while doing so he
will inadvertently go into the Heichal. On Yom Kipur, though, when the
Ketores is burned in the Kodesh ha'Kodashim, a person will not try to peer
into the Heichal because he knows that there is nothing there to see. Since
he will not try to peer inside, there is no fear that he will walk in to the
Heichal.
(b) The TOSFOS HA'ROSH understands Rashi to mean that nobody will enter the
Heichal when the Kohen Gadol is offering the Ketores of Yom Kipur, because
everyone stands with much greater of the offering of the Ketores in the
Kodesh ha'Kodashim, and there is no concern that someone will walk into the
Heichal on Yom Kipur. When Rashi writes that it is far away from the place
of the Haktarah, he is explaining why the Rabanan did not prohibit going
between the Ulam and Mizbe'ach on Yom Kipur as a preventative measure for
the *rest* of the year (for if it is permitted to go there on Yom Kipur,
perhaps someone will also think it is permitted to go there on other days).
Rashi is saying that people will not confuse Yom Kipur with any other day
because on Yom Kipur, the Ketores is offered far away from the Ulam, and
thus there is no reason for people to confuse it with the offering of the
Ketores in the Heichal during the rest of the year.
(c) The RITVA and TOSFOS YESHANIM suggest another answer. On Yom Kipur, the
Rabanan preferred not to prohibit standing between the Ulam and Mizbe'ach,
because they wanted other Kohanim to stand there as sentinels to watch the
Kohen Gadol in the Heichal. This was done so that the Kohen Gadol would know
that his actions were being observed and, if he was a Tzeduki, he would be
afraid to place the Ketores on the coals before entering the Kodesh
ha'Kodashim.