Ezekiel 42:18-20

Young's Literal Translation

¹⁸ The south side he hath measured, five hundred reeds, with the measuring-reed.

¹⁹ He hath turned round unto the west side, he hath measured five hundred reeds with the measuring-reed.

²⁰ At the four sides he hath measured it, a wall [is] to it all round about, the length five hundred, and the breadth five hundred, to separate between the holy and the profane place.