There is no temple building in the New Jerusalem. God and the Lamb are the city's temple, since they are worshiped everywhere. Revelation 22 goes on to describe a river of the water of life that flows down the middle of the great street of the city from the Throne of God. The tree of life grows in the middle of the street and to both sides of the river. The tree bears twelve (kinds of) fruit and yields its fruit every month. According to John, "The leaves of the tree were for healing (those of all) nations." This inclusion of the tree of life in the New Jerusalem harkens back to the Garden of Eden. The fruit the tree bears may be the fruit of life.