For I, saith the LORD, will be unto her a wall of fire round about, and will be the glory in the midst of her. I-- will be unto her a wall of fire - Her safety shall consist in my defense. I shall be as fire round about her. No adversary shall be permitted to touch her. Much of this must refer to the New Jerusalem.
Related Commentaries of Zechariah 2:5
Zechariah 2:5
5 For I, saith the LORD, will be unto her a wall of fire round about, and will be the glory in the midst of her.