Ezekiel 46:21-24

Then he brought me out into the outer court and caused me to pass by the four corners of the court; and in fact, in every corner of the court there was another court. In the four corners of the court were enclosed courts, forty cubits long and thirty wide; all four corners were the same size. There was a row of building stones all around in them, all around the four of them; and cooking hearths were made under the rows of stones all around. And he said to me, “These are the kitchens where the ministers of the temple shall boil the sacrifices of the people.”