4 Abide in Me, and I in you. As the branch cannot bear fruit of itself unless it abides in the vine, so neither can you unless you abide in Me. 5 I am the vine, you are the branches; he who abides in Me and I in him, he bears much fruit, for apart from Me you can do nothing. 6 If anyone does not abide in Me, he is thrown away as a branch and dries up; and they gather them, and cast them into the fire and they are burned. John 15:4-6 (NASB)
As I sat down to put this post together I became convinced that I should write about the number one marker that reveals the authenticity of Christians. That is that genuine believers in our Lord Jesus Christ abide in Him and do not fall away. Carefully read the passage I placed at the top of this post. The word “abide” is translated from the Greek word μενη. It and its forms such as μεινατε and μενητε are used in the Bible to refer to the subject of the sentence remaining or staying in the emphasized condition it is in. The “Abide” in v4 is a command. It is in aorist tense, imperative mood, and active voice. This command tells us that we are to abide in Christ as He abides in us. Will Christ abide in an unbeliever? Will He abide in a professing Christian who is not regenerate? No! He abides only in His children and they, in turn, abide in Him. They remain. They do not fall away. Those who abide in Christ are analogous to branches abiding in the vine. Those who abide in the vine live and produce fruit while those who do not abide in it, but look like they actually do, do not fool the vinedresser. He gathers those who wither, because they are not abiding in the vine, and throws them into the fire to be burned. Those who do not abide in Christ, that is, they fall away, are unbelievers. They do not have a personal faith in Christ.