Ezekiel 42:20 YLT

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.