Revelation 22:1

1AndΚαὶhe showedἔδειξένmeμοιa riverποταμὸνof waterὕδατοςof lifeζωῆςclearλαμπρὸνasὡςcrystalκρύσταλλον,flowingἐκπορευόμενονout ofἐκtheτοῦthroneθρόνουτοῦof Godθεοῦandκαὶof theτοῦLambἀρνίου

And he showed me a river of water of life, clear as crystal, proceeding out of the throne of God and of the Lamb.