This is commonly called Ezekiel’s Temple. This vision or this series of visions, Ezekiel had while in captivity in Babylon. Who was Ezekiel and why did he have these visions?
Today, let’s focus on the “New Temple” portion from Ezekiel 40-43
Part 1: Lost and Found in the Temple — Ezekiel’s Temple (ezekielstemple.com)
The Temple Mount in the Herodian Period (37 BC–70 A.D.) – Biblical Archaeology Society
Locating Solomon’s Temple -chapter One (templemountlocation.com)
Ezra’s Temple, Herod’s Temple and Ezekiel’s vision of the Third Temple (jewishmag.com)