On that day, a fountain will open to cleanse the sin and impurity of David's house and the inhabitants of Jerusalem.
References for Zechariah 13:1
On that day, says the LORD of heavenly forces, I will eliminate the names of the idols from the land; they will no longer be remembered. Moreover, I will remove the prophets and the sinful spirit from the land.
If anyone again prophesies, then that person's birth father and mother will say, "You won't live, for you have told a lie in the name of the LORD." That person's own birth father and mother will stab him when he prophesies.
On that day each of the prophets will be ashamed of his vision when he prophesies and won't put on a shaggy coat in order to deceive.
Each will say, "I'm not a prophet. I'm a man who works the ground, for the soil has been my occupation since I was young."
Someone will say to him, "What are these wounds between your hands?" And he will say, "These happened when I was hit in my friends' home."
Sword, arise against my shepherd, against the man responsible for my community, says the LORD of heavenly forces! Strike the shepherd in order to scatter the flock! I will turn my hand against the little ones.
References for Zechariah 13:7
Throughout all the land, says the LORD, two-thirds will be cut off and die; but one-third will be left in it.
I will put the third part into the fire. I will refine them like one refines silver; I will test them like one tests gold. They will call on my name, and I will respond to them. I will say, "They are my people." And they will say, "The LORD is our God."