Ezekiel 42:15-20

When the man finished measuring inside the Temple area, he brought me out through the east gateway. He measured the area all around. The man measured the east side with the measuring stick; it was eight hundred seventy-five feet by the measuring stick. He measured the north side; it was eight hundred seventy-five feet by the measuring stick. He measured the south side; it was eight hundred seventy-five feet by the measuring stick. He went around to the west side; it measured eight hundred seventy-five feet by the measuring stick. So he measured the Temple area on all four sides. The Temple area had a wall all around it that was eight hundred seventy-five feet long and eight hundred seventy-five feet wide. It separated what was holy from that which was not holy.