The talmud continues its discussion of the validity of offerings made
with the wrong intention, and in the g'mara raises the practical point
of what to do about it if you realize there's a problem after you've started.
Some say if the offering has been placed on the altar you do not remove
it (because we do not reduce the holiness of things, even if there's a
problem with the offering). If it was removed anyway, do you have to put
it back? A teaching of R. 'Ulla is brought to show that if it had started
to burn you must put it back, and if not, not. (43a)
This daf -- actually, most of this tractate, so far -- is a little hard
for me to follow, so while I always welcome correction, I want to particularly
invite it here.
Somebody asked me this morning why the talmud spends so much time on the
details of sacrifices when, by the time they were writing this down, that
system had been gone for hundreds of years. I offer three answers: (1) The rabbis
of the time, and many Jews to this day, hold that there will be a third temple
where these rites will resume, so we'd better not forget how. (2) The rabbis
hold that there is merit in torah study even if it serves no earthly
purpose. And (3) because the prayer service we do now models the sacrificial
system it replaced, so things we learn about the earlier system should inform
our practice. For example, today's teaching about continuing the altar service
even though the offering has been disqualified makes me wonder about the correct
way to handle errors in prayer. If I start to say the wrong blessing and realize
mid-stream, do I abort immediately or complete the incorrect blessing before
going back and doing the right one? When this happens to me I currently stop
where I am and go back to the right point; now I have a question to look up.