I am the true vine, and My Father is the husbandman.  Every branch in Me that beareth not fruit He taketh away: and every branch that beareth fruit, He purgeth it, that it may bring forth more fruit.  Now ye are clean through the word which I have spoken unto you.  Abide in Me, and I in you. As the branch cannot bear fruit of itself, except it abide in the vine; no more can ye, except ye abide in Me.
I am the vine, ye are the branches: He that abideth in Me, and I in him, the same bringeth forth much fruit: for without Me ye can do nothing.   If a man abide not in Me, he is cast forth as a branch, and is withered; and men gather them, and cast them into the fire, and they are burned.   If ye abide in Me, and My words abide in you, ye shall ask what ye will, and it shall be done unto you.  Herein is My Father glorified, that ye bear much fruit; so shall ye be My disciples.
John 15:1-8

Jesus is the source of our strength, and the the source of any spiritual fruit we might bear.  What is the fruit of the Spirit?  The apostle Paul tells us in Galatians 5:22-26

But the fruit of the Spirit is love, joy, peace, longsuffering, gentleness, goodness, faith, meekness, temperance: against such there is no law. And they that are Christ’s have crucified the flesh with the affections and lusts.  If we live in the Spirit, let us also walk in the Spirit. Let us not be desirous of vain glory, provoking one another, envying one another.

Those branches which bear no fruit are cut away, and is eventually cast into fire for burning.

The branches do not bear the fruit of the Spirit, except they will  abide in the Vine.  Jesus is the vine, the true vine, and the branches which bear fruit are those who continue abiding in Him.  Living in Him bearing the fruit, because He is worthy of our abiding in Him alone.

Let us remain in the vine, Jesus Christ.  He died for our sins, was buried, and He rose again the third day.  Believe Him.   He also said, “I will come again…”  Believe Him.