Jesus is the vine and we are the branches. If we do not produce fruit, we are a dead branch. We may be outwardly connected to Jesus, but there is no life in us. These branches will be taken away. The branches that bear fruit will be pruned so that they can produce more fruit. The old, dead wood is taken away so that new wood and more fruit can be produced. The dead wood is sin and the fruit is that which comes from the Sprit of God. Christian growth takes place because you are connected to Jesus and He is producing fruit in your life.