Ezekiel explained that there were 90 side chambers that were 4 cubits or 7 feet wide. However, they were stacked on 3 stories, each story with 30 of these small chambers or rooms for storage and treasures. They were not supported by the Temple wall, since these 90 small rooms had their own supports.
“The soldiers of the king’s army went up to Jerusalem against them. The king encamped in Judea and at Mount Zion. He made peace with the men of Beth-zur. They evacuated the town because they had no provisions there to withstand a siege, since it was a sabbatical year for the land. So the king took Beth-zur. He stationed a guard there to hold it. Then he encamped before the sanctuary for many days. He set up siege towers, engines of war to throw fire and stones, machines to shoot arrows, and catapults. The Jews also made engines of war to match theirs. They fought for many days. But they had no food in storage, because it was the seventh year. Those who found safety in Judea from the gentiles had consumed the last of the stores. Only a few men were left in the sanctuary. The rest of the men had scattered to their own homes. The famine proved too much for them.”
The king’s soldiers moved on to Jerusalem. They camped near Mount Zion. They had already made peace with the people of Beth-zur because they had no provisions due to the fact that it was a sabbatical year. No one worked the fields. The king set up a guard there. Then he camped near the sanctuary in Jerusalem. Then the king’s men set up towers to create engines of war. These engines of war were like battering rams or catapults to shot fire, stones, and arrows. The Jews tried to match these engines of war as the war dragged on. However, the men in Jerusalem, like the people in Beth-zur had little supplies since this was sabbatical jubilee year when no work was done. Eventually, a lot of the Jews left for their own homes as the famine continued.