" Herein is My Father glorified, that ye bear MUCH fruit; so shall ye be My disciples"....so said Jesus Christ as He taught the people as recorded in John 15. He said MUCH fruit ! He meant MUCH FRUIT.  MUCH FRUIT brought forth by HIS SPIRIT.

"Notbymight, norbypower, but by my spirit, saith the Lord of hosts." as recorded in Zechariah. 

John 15:5 KJV

I am thevine, 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.