Ezekiel 40:3-6

3He took me there, and behold, there was a man whose appearance was like the appearance of bronze. He had a line of flax and a measuring rod in his hand, and he stood in the gateway.

4And the man said to me, “Son of man, look with your eyes and hear with your ears, and fix your mind on everything I show you; for you were brought here so that I might show them to you. Declare to the house of Israel everything you see.”

5Now there was a wall all around the outside of the temple. In the man’s hand was a measuring rod six cubits long, each being a cubit and a handbreadth; and he measured the width of the wall structure, one rod; and the height, one rod.

6Then he went to the gateway which faced east; and he went up its stairs and measured the threshold of the gateway, which was one rod wide, and the other threshold was one rod wide.