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
John Chrysostom
AD 407
Having said that they were clean through the word which He had spoken to them, He now taught them that they must do their part.
The Son then contributes no less than the Father to the help of the disciples. The Father changes, but the Son keeps them in Him, which is that which makes the branches fruitful. And again, the cleansing is attributed to the Son also, and the abiding in the root to the Father who begot the root. It is a great loss tobe able to do nothing, but He goes on to say more than this: If a man abide not in Me, he iscast forth as a branch, i.e. shall not benefit by the care of the husbandman, and withers, i.e., shall lose all that it desires from the root, all that supports its life, and shall die.
Then He shows what it is to abide in Him. If you abide in Me, and My words abide in you, you shall ask what you will and it shall be done to you. It is to be shown by their works.