John 15:2

15:2 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.

John 15:8

15:8 Herein is my Father glorified, that ye bear much fruit; so shall ye be my disciples.

John 15:16

15:16 Ye have not chosen me, but I have chosen you, and ordained you, that ye should go and bring forth fruit, and [that] your fruit should remain: that whatsoever ye shall ask of the Father in my name, he may give it you.