John 15:5
I am the vine, you are the branches. Those who abide in me and I in them bear much fruit, because apart from me you can do nothing — the identification is complete: disciples are branches, Jesus is vine, the Father is the vinedresser. Fruit-bearing requires mutual abiding; it is not achievement but the natural consequence of remaining in proper relationship to the source of life. The radical claim "apart from me you can do nothing" (ou dynasthe poiein—you are unable to do anything) sweeps away all pretense of independent spiritual accomplishment; genuine good works flow only from abiding in Christ.