3 Bible Verses about Walled Towns

It had a great, high wall, with twelve huge gates, and twelve angels in charge of the gates, which had inscribed upon them the names of the twelve tribes of Israel.

He measured its wall, two hundred and sixteen feet as a man measures, which is the way the angel measured.

The wall of the city had twelve foundation stones, and on them were the twelve names of the Lamb's twelve apostles.