Every branch that does bear fruit he PRUNES

[tonychanyt]

You are already producing fruit; why are you being pruned?

Jn 15:

1 “I am the true vine, and my Father is the vinedresser. 2 Every branch in me that does not bear fruit he takes away,

Hopefully, the above is not you.

and every branch that does bear fruit he prunes, that it may bear more fruit.

Strong's Greek: 2508. καθαίρω (kathairó) — 1 Occurrence

BDAG:
① to cause someth. to become clean, make clean, lit., of a place that has been swept
② to remove superfluous growth from a plant, clear, prune of a vine

Does the pruning cause pain?

In ①, it doesn't; in ②, it does. It is the process of spiritual growth and sanctification. It could be painful at times. After that, you will bear more fruit. The process repeats throughout a Christian's lifetime as we produce more and more fruit. Expect pruning.

What is the alternative?

6 If anyone does not abide in me he is thrown away like a branch and withers; and the branches are gathered, thrown into the fire, and burned.

Even though the pruning causes pain sometimes, it is better than being burned.