Abide in me, and I in you. As the branch cannot bear fruit of itself, except it abide in the vine; no more can you, except you abide in me.
All Commentaries on John 15:4 Go To John 15
Augustine of Hippo
AD 430
Abide in Me, and I in you: not they in Him, as He in them; for both are for the profit not of Him, but them. The branches do not confer any advantage upon the vine, but receive their support from it: the vine supplies nourishment to the branches, takes none from them: so that the abiding in Christ, and the having Christ abiding in them, are both for the profit of the disciples, not of Christ; according to what follows, As the branch cannot bear fruit of itself, except it abide in the vine, no more can you, except you abide in Me. Great display of grace! He strengthens the hearts of the humble, stops the mouth of the proud. They who hold that God is not necessary for the doing of good works, the subverters, not the asserters, of free will, contradict this truth. For he who thinks that he bears fruit of himself, is not in the vine; he who is not in the vine, is not in Christ; he who is not in Christ, is not a Christian.
But lest any should suppose that a branch could bring forth alittle fruit of itself, He adds, For without Me you can do nothing. He does not say, you can dolittle. Unless the branch abides in the vine, and lives from the root, it can bear no fruit whatever. Christ, though He would not be the vine, except He were man, yet could not give this grace to the branches, except He were God.
For the branches of the vine are as contemptible, if they abide not in the vine, as they are glorious, if they abide. One of the two the branch must be in, either the vine, or the fire: if it is not in the vine, it will be in the fire.
For then may His words be said to abide in us, when we do what He has commanded, and love what He has promised. But when His words abide in the memory and are not found in the life, the branchis not accounted to be in the vine, because it derives no life from its root. So far as we abide in the Savior we cannot will any thing that is foreign to our salvation. We have one will, insofar as we are in Christ, another, insofar as we are in this world And by reason of our abode in this world, it sometimes happens that we ask for that which is not expedient, through ignorance. But never, if we abide in Christ, will He grant it us, Who does not grant except what is expedient for us. And here we are directed to the prayer, Our Father. Let us adhere to the words and the meaning of this prayer in our petitions, and whatever we ask will be done for us.