John 15:2 Every branch in me that does not bear fruit he takes away, and every branch that does bear fruit he prunes, that it may bear more fruit.
Many that claim Christ are not truly in Christ. They may appear to be fruit bearing branches of the vine because of their rhetoric and profession, but they are hypocrites and are still dead in their sin. This verse makes a distinction between the fruit of true believers vs. false professors of Christ. The false professors are unregenerate and incapable of bearing fruit, whereas, true believers bear fruit. God removes the false believers who bear no fruit, and the believers who bear fruit are pruned in order for them to bear even more fruit.
Focus on Christ #117