Ezekiel 43:10-27.
In this week's haftorah, the prophet Ezekiel describes a vision of the altar that will be built for the third Holy Temple and its dedication ceremony—paralleling this week's Torah portion which discusses the dedication of the Tabernacle's altar.
Shortly after the destruction of the first Temple, Ezekiel experienced a vision of the third Holy Temple that will be built by the Messiah. G‑d tells Ezekiel to recount to the Jewish people this vision, and this hopefully will bring them to be ashamed of the deeds they did that caused the destruction of the Temple. "And if they are ashamed of all that they have done, let them know the form of the House and its scheme, its exits and its entrances, and all its forms, and all its laws and all its teachings..."
Ezekiel then goes on to describe in detail the third Temple's altar, and also describes its seven-day inauguration ceremony and the offerings which will be brought on each day of that special week.
I appreciate the riches and amazingness of this Chabad site! Thank you!
And I'm curious about the choice to talk about Ezekiel's vision of a "third Temple." HIstorically he lives through the destruction of the first Temple. It is more accurate to say that he sees a restored Temple. And in this case, the second.
Good question! Actually, the Second Temple does not match the vision of Ezekiel. The one they built was not the one he saw. He must have seen a third temple, yet to come. As for why they did not build it according to his specifications, please see chabad.org/library/article_cdo/aid/1594241/jewish/Did-the-Jews-Disregard-Ezekiels-Prophecy-of-the-Temple.htm. It explains there why the prophets Chaggai, Zechariah, and Malachi were commanded by G-d to build it differently than Ezekiel saw it.