Zechariah 13:1; Zechariah 13:7-9
"On that day a fountain will be opened to the house of David and the inhabitants of Jerusalem, to cleanse them from sin and impurity.
"Awake, O sword, against my shepherd, against the man who is close to me!" declares the LORD Almighty. "Strike the shepherd, and the sheep will be scattered, and I will turn my hand against the little ones.
In the whole land," declares the LORD, "two-thirds will be struck down and perish; yet one-third will be left in it.
This third I will bring into the fire; I will refine them like silver and test them like gold. They will call on my name and I will answer them; I will say, 'They are my people,' and they will say, 'The LORD is our God.' "