<p>To try to reconcile the question that was asked at around the 5:00 mark about if Source A was talking about the first or second Beis Hamikdash I would say that it doesn't make a difference. Since in both scenarios Hashem is building a home for Himself it stands to reason that there will be desires of assistance from all creatures, the reasoning of desire for assistance will still apply. True the sanctity of the 2nd BH"M was not as strong as the first, but "Yiftach B'doro..." The 2nd BH"M represented Hashem's main dwelling place and therefore what creature, at that time, would not want to take part in assisting the humans to make it.</p> <p>And perhaps one can infer that everytime we build a shul, or even support Torah, or even do a mitzvah lisheim Shamayim, this medrash shows that of course there is Heavenly assitance for us to get the job done right, but also one will get assitance from many creatures that we done even realize to get the mitzvah done properly. Part of the shmira of doing a mitvah, I guess.</p>