Like a city whose walls are broken down is a man who does not control his temper.

2 Chronicles 32:5
Then Hezekiah worked resolutely to rebuild all the broken sections of the wall and to raise up towers on it. He also built an outer wall and reinforced the supporting terraces of the City of David, and he produced an abundance of weapons and shields.

Nehemiah 1:3
And they told me, "The remnant who survived the exile are there in the province, in great trouble and disgrace. The wall of Jerusalem is broken down, and its gates are burned with fire."

Proverbs 16:32
He who is slow to anger is better than a warrior, and he who controls his temper is greater than one who captures a city.

He that has no rule over his own spirit is like a city that is broken down, and without walls.