'Bear Fruit' in the Bible

He will cut off [See verse 6] every branch [i.e., follower of Christ] who is in [fellowship with] me that does not bear fruit. And He will prune every branch that does bear fruit, so it will bear more fruit.

Remain united to me, and I will remain united to you. Just as a branch cannot bear fruit by itself, unless it remains united to the vine, so neither can you people [bear fruit] unless you remain united to me.