От Иоанна 15:6

If a man abide not in me, he is cast forth as a branch . . . withered . . . cast into the fire . . . burned--The one proper use of the vine is to bear fruit; failing this, it is good for one other thing--fuel. (See Eze 15:1-5). How awfully striking the figure, in this view of it!

It is generally agreed that Christ's discourse in this and the next chapter was at the close of the last supper, the night in which he was betrayed, and it is a continued discourse, not interrupted as that in the foregoing chapter was; and what he chooses to discourse of is very pertinent to the present sad occasion of a farewell sermon. Now that he was about to leave them, I. They would be tempted to leave him, and return to Moses again; and therefore he tells them how necessary it was that they should by faith adhere to him and abide in him. II. They would be tempted to grow strange one to another; and therefore he presses it upon them to love one another, and to keep up that communion when he was gone which had hitherto been their comfort. III. They would be tempted to shrink from their apostleship when they met with hardships; and therefore he prepared them to bear the shock of the world's ill will. There are four words to which his discourse in this chapter may be reduced; 1. Fruit (Joh 15:1-8). 2. Love (Joh 15:9-17). 3. Hatred (Joh 15:18-25). The Comforter (Joh 15:26, Joh 15:27).

15:6 Anyone who does not remain in Christ is separated from the vine and its life. A living branch produces clusters of grapes (15:5). Connection with the vine allows the life of Jesus to flow fruitfully through the disciple. Those who claim to be attached to Christ but yield no fruit are useless and will be burned.