If a man abide not in me,.... Christ does not say, "if ye abide not in me"; he would not suppose this of his true disciples; Judas now being removed, to whom he may have some respect in this verse; though it may be applied to anyone who has made a profession of Christ, and denies the truths of the Gospel, neglects the ordinances of it, or walks unworthy of his profession: of whom the following things may be truly said,he is cast forth as a branch; that is unfruitful, and is therefore taken away from the vine, and cast forth out of the vineyard.
This signifies the ejection of worthless and fruitless professors out of the churches; for such who are either unsound in their principles, or are remiss and negligent in their attendance on the worship of God, with the church, or are loose and vain in their lives and conversations, are to be removed from communion with the people of God.
And is withered. Some versions, as the Arabic, Syriac, and Persic, read this as an epithet of the word "branch", thus; "the branch that is withered"; expressing the condition the branch is in before it is cast forth out of the vineyard, and the reason of its being cast forth: but others read it as a new and distinct predicate of the branch, showing the case it is in, immediately upon its being cast forth: it may be cut off, and cast out with its leaves upon it, though without fruit; but as soon as ever it is ejected, it withers away.