Answer
In John 15, Jesus uses the relationship of branches to the vine to illustrate our connection to Him: “I am the true vine, and my Father is the vinedresser. Every branch in me that does not bear fruit, He takes away, and every branch that does bear fruit, He prunes so that it may bear more fruit… If anyone does not abide in me, he is thrown away like a branch, withers, and is gathered to be thrown into the fire and burned” (verses 1–2, 6).
Many interpret the verses about fruitless branches being removed and burned as evidence that salvation can be lost. The idea is that a person who was once in Christ may later stop “abiding in Christ” and become unfruitful, leading to being cut off and burned. If the parable of the vine and the branches were the sole passage addressing eternal security, there might be reason to fear losing salvation. However, this is not the only Scripture discussing security and assurance, nor is it the only passage in John addressing these matters.
Various passages in John clearly affirm the security of believers (John 3:16-17;6:35-40;10:27-29). This theme is prevalent throughout the Bible. Some passages explicitly assure the security of believers, while others may raise doubts about the permanence of salvation. It is advisable to interpret less clear passages in light of clearer ones. Given that John 15 is an allegory, it is wise to let clearer passages guide our understanding.
The context of Jesus’ words in John 15 likely draws from Old Testament imagery where Israel is likened to a vine or vineyard—albeit one that failed to yield the expected fruit (See Isaiah 5:1-7). Jesus replaces Israel with Himself as the “true vine.” Unlike Israel, Jesus will not fail to produce fruit in all the branches that are connected to Him. The point of Jesus’ metaphor is that He will succeed where Israel failed. The disciples simply need to be connected to Him. According to John 15, it is unthinkable that any branch connected to Christ will fail to produce fruit. Yet, according to the illustration, some branches “in Him” will not produce fruit and will be taken away. There seems to be a contradiction within the illustration itself that would warn us not to press the details too far.
The apparent problem is the same with all the other passages in Scripture that warn Christians about falling away. If a true Christian cannot lose salvation, why warn about falling away? The best explanation is that these warnings are directed toward professing Christians who appear, at least outwardly, to be connected to the Vine. They are branches in the vicinity of the Vine, but there is a disconnect. Judas Iscariot is a good example of a false professor. The parable of the seed and the soils (Matthew 13) presents young plants that seem to start out well but then wither away. The book of Hebrews, with its many warning passages, seems to be directed at those who have made an initial positive response to Jesus but are considering turning back. They are like the children of Israel who left in the exodus with Moses but then refused to enter the Promised Land (Hebrews 3:16-19). They started out on the journey but didn’t complete it.
Based on outward appearances at any given moment, it may be difficult to tell genuine believers (connected in vital unity with the True Vine) from those who have merely attached themselves to some of the trappings of Christianity. However, time will tell the difference because the genuine believer attaches
Connected to the True Vine will bear fruit. A false professor seems to be connected but does not bear fruit, and it is the absence of fruit that indicates a branch is not receiving the fruit-bearing energy that comes from being connected to the Vine. No matter how connected this branch may seem on the surface, it is missing the one definitive proof of connection—fruit! That “branch” should not deceive himself with false beliefs that he is connected, because his lack of fruit provides condemning proof against him. In this instance, the branch was never truly connected in the beginning. The metaphor (or allegory) of the vine and the branches can only be extended so far.