Ezekiel 42:14-18

When the priests enter, they shall not go out into the outer courtyard from the sanctuary without laying their garments there in which they minister, for they are holy. They shall put on other garments; then they shall approach that which is for the people.”

Now when he had finished measuring the inner house, he brought me out by way of the gate which faced east, and measured it all around.

He measured on the east side with the measuring rod: five hundred rods by the measuring rod.

He measured on the north side: five hundred rods by the measuring rod.

On the south side he measured five hundred rods with the measuring rod.