Revelation 21:17

Awake, awake, Clothe yourself in your strength, O Zion; Clothe yourself in your glorious garments, O Jerusalem, the holy city; For the uncircumcised and the unclean Will no longer come into you.

So I said, “Where are you going?” And he said to me, “To measure Jerusalem, to see how wide it is and how long it is.”

for he was looking for the city which has foundations, whose architect and builder is God.

Here is wisdom. Let him who has understanding calculate the number of the beast, for it is the number of man; and his number is 666.

And if anyone takes away from the words of the book of this prophecy, God will take away his part from the tree of life and from the holy city, which are written in this book.