The fruit of the Spirit is the outward indicator that someone has been saved and now has been made a part of God's family. As we have been saying regarding this, this evidence is not simply outward actions but it is as a result of the inward work of the Holy Spirit that causes us to begin to produce this outward sign. If we are truly children of God then we have been given the Holy Spirit who is now at work in us producing fruit that we cant help but manifest on the outside.
In other words...any true believer and Christ-follower will have outward evidence of the inward working of the Holy Spirit. This evidence Paul calls fruit. It seems interesting to me that he labels it singularly. It is not the fruits of the Spirit but the fruit of the Spirit. It seems to suggest that all of the words he used are simply multiple characteristics of one fruit - the work of the Holy Spirit. They are inextricably tied to each other.
I also believe that the authentic Christ-follower will produce fruit in varying quantities. We can have little fruit, some fruit or much fruit. God desires that we bear "much fruit" and in order to do that we must be open to the Holy Spirit in our lives. How do we do that? We must be listening to the voice of the Holy Spirit as He speaks through the Word of God and through the trusted and tried spiritual leaders in our lives. Not only are we to listen to the Holy Spirit as He speaks but we must be receptive to His direction and then choose to obey no matter how difficult the course. As we do this we give the Holy Spirit the latitude to work in us and this produces fruit from the inside out.
Is there outward evidence of the inward work of the Holy Spirit?
Is there increasing abundance of fruit?