约翰福音第十五章第1—3节，耶稣说他是葡萄树，天父是园主，门徒们是葡萄树上的枝子。葡萄树上凡结果子的枝子，园主就修理干净，使枝子结果子更多。耶稣接着说，因着他讲的道，门徒们已经被修理干净了。可见，这里耶稣说的很明白，修理干净是因接受了耶稣的道。
约15:1 我是真葡萄树、我父是栽培的人。
"I am the true vine, and my Father is the farmer.
约15:2 凡属我不结果子的枝子、他就剪去．凡结果子的、他就修理干净、使枝子结果子更多。
Every branch in me that doesn't bear fruit, he takes away. Every branch that bears fruit, he prunes, that it may bear more fruit.
约15:3 现在你们因我讲给你们的道、已经干净了。
You are already pruned clean because of the word which I have spoken to you.
