Ezekiel 43:12-13

“This is the law of the temple: All the surrounding area on top of the mountain will be most holy. Such is the law of the temple. “These are the measurements of the altar in long cubits, that cubit being a cubit and a handbreadth: Its gutter is a cubit deep and a cubit wide, with a rim of one span around the edge. And this is the height of the altar