Jesus is the grapevine, his followers are the branches, and his Father is the gardener and is the one who does the pruning. If a branch doesn't produce fruit it is cut off from the grapevine and cast into the fire. According to Galatians 5:22 the Holy Spirit produces the fruit in us so just as Jesus said, it is imperative we walk according to the Spirit so he will produce fruit. As the Holy Spirit produces fruit in us we need to share it with others!