Zechariah 2:3-5

And there was the angel who talked with me, going out; and another angel was coming out to meet him, who said to him, “Run, speak to this young man, saying: ‘Jerusalem shall be inhabited as towns without walls, because of the multitude of men and livestock in it. For I,’ says the LORD, ‘will be a wall of fire all around her, and I will be the glory in her midst.’ ”