Zevahim 62: The Ashes of Isaac, or Where to Build the Second Temple's Altar
Building the Second Temple's altar - at which point, they already knew the outline of the building itself, but they weren't quite sure about the altar. How did the know? One suggestion is that the archangel Michael told them in a vision. Alternatively, the "ashes of Isaac" -- as seen in a vision -- were seen in the same place as the altar, namely, since that was also the location of the Binding of Isaac. Alternatively, the scent at the place was that of the offerings, instead of the scent of incense that was designed to improve the overall smell of the place. Plus 3 prophets revealed the…
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