Aaah, this doesn't sound like a done deal:
John 15:
1I am the true vine, and My Father is the keeper of the vineyard.
2He cuts off every branch in Me that bears no fruit, and every branch that does bear fruit, He prunes to make it even more fruitful.
3You are already clean because of the word I have spoken to you.
4Remain in Me, and I will remain in you. Just as no branch can bear fruit by itself unless it remains in the vine, neither can you bear fruit unless you remain in Me.
Maybe this part is missing in your bible.