Living as a branch of Jesus Christ, the true vine...

Jesus said to his disciples: I am the true vine and my Father is the gardener. He cuts away every branch of mine that doesn't produce fruit. But he trims clean every branch that does produce fruit, so that it will produce even more fruit. You are already clean because of what I have said to you. Stay joined to me, and I will stay joined to you. Just as a branch cannot produce fruit unless it stays joined to the vine, you cannot produce fruit unless you stay joined to me. I am the vine, and you are the branches. If you stay joined to me, and I stay joined to you, then you will produce lots of fruit. But you cannot do anything without me. If you don't stay joined to me, you will be thrown away. You will be like dry branches that are gathered up and burned in a fire. Stay joined to me and let my teachings become part of you. Then you can pray for whatever you want, and your prayer will be answered. When you become fruitful disciples of mine, my Father will be honored (John 15:1-8 CEV).

Jesus Christ is the Vine, the true Vine. The union of the human and Divine natures, and the fullness of the Holy Spirit that is in him, resemble the root of the vine made fruitful by the moisture from a rich soil. Believers are branches of this Vine. The root is unseen, and our life is hidden with Christ; the root bears the tree, diffuses sap to it, and in Christ are all supports and supplies. The branches of the vine are many, yet, meeting in the root, are all but one vine; thus all true Christians, though in place and opinion distant from each other, meet in Christ.

Christians, like the branches of the vine, are weak, and unable to stand but as they are borne up. The Father is the Gardener. Never was any gardener so wise, so watchful, about his vineyard, as God is about his church, which therefore must prosper. We must be fruitful. From a vine we look for grapes, and from a Christian we look for a Christian temper, disposition, and life. We must honour God, and do good; this is bearing fruit. The unfruitful are taken away. And even fruitful branches need pruning; for the best have notions, passions, and humours, that require to be taken away, which Christ has promised to forward the sanctification of believers, they will be thankful, for them.

The word of Christ is spoken to all believers; and there is a cleansing virtue in that word, as it works grace, and works out corruption. And the more fruit we bring forth, the more we abound in what is good, the more our Lord – Jesus Christ is glorified. In order to come to fruitfulness, we must abide in Christ, must have union with him by faith. It is the great concern of all Christ's disciples, constantly to keep our dependence in Christ, and communion with him.

True Christians find by experience, that any interruption in the exercise of their faith causes holy affections to decline, their corruptions to revive, and their comforts to droop. Those who abide not in Christ, though they may flourish for awhile in outward profession, yet come to nothing. The fire is the fittest place for withered branches; they are good for nothing else. Let us therefore continually seek to live more simply on the fullness of Christ, and to grow more fruitful in every good word and work, so that our joy in Him and in His salvation will be full.

Culled from Matthew Henry’s Concise Commentary