Then the angel showed me the river of the water of life, bright as crystal, flowing from the throne of God and of the Lamb  through the middle of the street of the city; also, on either side of the river, the tree of life with its twelve kinds of fruit, yielding its fruit each month. The leaves of the tree were for the healing of the nations.  No longer will there be anything accursed, but the throne of God and of the Lamb will be in it, and his servants will worship him.  They will see his face, and his name will be on their foreheads.  And night will be no more. They will need no light of lamp or sun, for the Lord God will be their light, and they will reign forever and ever.
 And he said to me, “These words are trustworthy and true. And the Lord, the God of the spirits of the prophets, has sent his angel to show his servants what must soon take place.”
 “And behold, I am coming soon. Blessed is the one who keeps the words of the prophecy of this book.” (ESV)