In John 15:2, Jesus said the Father would remove the unfruitful branches from the Vine. The unfruitful branch is the Christian who does not live as a dependent on Jesus and who is not walking in consistent, close fellowship. That Christian is still saved, but there is a loss of fellowship and fruitfulness. They are a barren branch.
John 15:6 gives us more insight into the fate of barren branches. First, there is a wandering. This separation results from our choice to break fellowship with Christ and live independently. We are not “walk[ing] in the light, as he is in the light,” and we do not “have fellowship one with another.” (1 John 1:7)
Withering is the natural result when the branch is separated from the Vine. The life-giving sap of the Vine no longer flows into the branch, so it loses its moisture and becomes dry and fragile, like “the chaff which the wind driveth away.” (Psalm 1:4)
The final result will be a branch that is wasted. It will be gathered with all the other debris and burnt with the rest of the rubbish. Jesus is not warning of death in hell. He is warning of a worthless end. As Paul said, “If any man’s work shall be burned, he shall suffer loss: but he himself shall be saved; yet so as by fire.” (1 Corinthians 3:15)
This verse is a warning to every Christian. You must choose to abide in Christ. If you do not, your life will be unfruitful, dry, and fragile. The longer you refuse to abide in Christ, the more of your life you are wasting. Don’t be a barren branch. Abide in Christ, and His life will flow through you into fruitfulness.