Zechariah 13:1 – 2
New International Version (NIV)
Cleansing From Sin
1 “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.
2 “On that day, I will banish the names of the idols from the land, and they will be remembered no more,” declares the LORD Almighty. “I will remove both the prophets and the spirit of impurity from the land.
From BibleGateway.com: http://www.biblegateway.com/passage/?search=Zechariah+13.1-2&version=NIV