The line of life (the eternal life) begins with the tree of life with the river of life in the garden of Eden and flows through the Bible to New Jerusalem.
According to the revelation in the Bible, we see two streams proceeding out of the throne of God. One is the stream of living water, and the other is a stream of fire. The stream of living water is revealed in Ezekiel 47 and Revelation 22. In Ezekiel living water issues out of the house of God; in Revelation 22 living water flows out of the throne of God. In Daniel 7:9-10 we see another stream, a stream of fire, flowing out of the throne of God. The living water is for reviving and watering, but the stream of fire is for judging. It courses in judgment throughout the universe. The river of water proceeds out of the throne of God and will flow all positive things into the New Jerusalem. The stream of fire issues out of the throne of God and will sweep all negative things into the lake of fire. In the beginning of the Bible we have the start of two lines, the line of life and the line of knowledge. At the end of the Bible we have two results, two consummations—the city of living water and the lake of burning fire.*
The line of life comes from the tree of life with the river of life. The line of knowledge comes from the tree of the knowledge of good and evil. These two trees are identified in Genesis 2:9. Notice that both good and evil are on the same tree, and that both are separated from life.
Our goal is not to try to do good, which gets us involved with evil because they are on the same tree (Romans 7:19-21). Instead, our seeking is to be men of life, men filled with the Spirit of life, having this life imparted into every part of our being (Romans 8:2, 6, 10-11).
On the line of life our spirit becomes life by regeneration, our mind becomes life through transformation, and our mortal body receives life from the indwelling Spirit. The line of life brings us all the way to New Jerusalem, the city of life.
Photo courtesy of U.S. Bureau of Land Management.