Abide in me, and I in you. As the branch cannot bear fruit by itself, unless it abides in the vine, neither can you, unless you abide in me. 5 I am the vine; you are the branches. Whoever abides in me and I in him, he it is that bears much fruit, for apart from me you can do nothing. John 1:4-5
The analogy of the vine illustrates our total dependence on Jesus. We need to be permanently connected to Christ. Notice we are not the fruit we are the branches. And the fruit we bear will be grafted into the vine which is Jesus, not us. If we separate from Jesus we become dried out dead branches which cannot bear any fruit. We become useless.