Ezekiel 40:3-5
40:3 When he brought me there, I saw a man whose appearance was like bronze, with a linen cord and a measuring stick in his hand. He was standing in the gateway.
40:4 The man said to me, “Son of man, watch closely, listen carefully, and pay attention to everything I show you, for you have been brought here so that I can show it to you. Tell the house of Israel everything you see.”
40:5 I saw a wall all around the outside of the temple. In the man’s hand was a measuring stick 10½ feet long. He measured the thickness of the wall as 10½ feet, and its height as 10½ feet.