От Иоанна 15:2

Every branch in me that beareth not fruit . . . every branch that beareth fruit--As in a fruit tree, some branches may be fruitful, others quite barren, according as there is a vital connection between the branch and the stock, or no vital connection; so the disciples of Christ may be spiritually fruitful or the reverse, according as they are vitally and spiritually connected with Christ, or but externally and mechanically attached to Him. The fruitless He "taketh away" (see on Joh 15:6); the fruitful He "purgeth" (cleanseth, pruneth)--stripping it, as the husbandman does, of what is rank (Mar 4:19), "that it may bring forth more fruit"; a process often painful, but no less needful and beneficial than in the natural husbandry.

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).

15:2-3 Gardeners cut away dead branches and trim healthy branches so they will produce more fruit. Fruitfulness is the result of life-giving connection to the vine.