Zechariah 2:2-5

I asked, “Where are you going?” He answered me, “To measure Jerusalem, to find out how wide and how long it is.” While the angel who was speaking to me was leaving, another angel came to meet him and said to him: “Run, tell that young man, ‘Jerusalem will be a city without walls because of the great number of people and animals in it. And I myself will be a wall of fire around it,’ declares the LORD, ‘and I will be its glory within.’