Zechariah 13:1
"In that day there shall be a fountain opened to the house of David and to the inhabitants of Jerusalem for sin and for uncleanness."
Cross References (ranked by relevance)
The next day John seeth Jesus coming unto him, and saith, Behold the Lamb of God, which taketh away the sin of the world.
And such were some of you: but ye are washed, but ye are sanctified, but ye are justified in the name of the Lord Jesus, and by the Spirit of our God.
Wash me throughly from mine iniquity, and cleanse me from my sin.
Then will I sprinkle clean water upon you, and ye shall be clean: from all your filthiness, and from all your idols, will I cleanse you.
Purge me with hyssop, and I shall be clean: wash me, and I shall be whiter than snow.
But with the precious blood of Christ, as of a lamb without blemish and without spot:
And in that day will I make Jerusalem a burdensome stone for all people: all that burden themselves with it shall be cut in pieces, though all the people of the earth be gathered together against it.
O LORD, the hope of Israel, all that forsake thee shall be ashamed, and they that depart from me shall be written in the earth, because they have forsaken the LORD, the fountain of living waters.
I will also save you from all your uncleannesses: and I will call for the corn, and will increase it, and lay no famine upon you.
Son of man, when the house of Israel dwelt in their own land, they defiled it by their own way and by their doings: their way was before me as the uncleanness of a removed woman.