“I chose you and appointed you that you should go and bear fruit..” .. (John 15:16)
When we study the hard demand of Jesus that all those who claim to be His disciples must be fruitful, we must understand what it means to be fruitful. My favorite definition is found somewhat buried in the longest recorded discourse of Jesus (John 13-16). It is known as the Upper Room Discourse because it began in an upper room where Jesus spent the last hours with His apostles before His arrest and crucifixion.
They had been fascinated with the words they heard Him speak and the works they saw Him do. He told them that the dynamic source of His words and works was His relationship with His Father. He and His Father were one and the result of that oneness was that the words of His Father and the works of His Father were spoken and done on earth through Him.
He shared the exciting truth with them that He was about to leave but He was sending them the Holy Spirit. If they would be at one with the Holy Spirit, as modeled by His oneness with the Father, the words and works of Jesus would be spoken and done on earth through them. To be at one with the Holy Spirit of the risen living Christ, doing His works and speaking His words is what it means to be fruitful.
The ignition that makes this possible is being related to the Holy Spirit of Christ as a branch is joined to a vine. Christ is a Vine looking for branches today. Are you willing to be one of His branches and be a fruitful disciple?