HE IS THE LIGHT OF LIFE
Further on in John 8:12, Jesus told the crowd, "I am the light of the world; he who follows Me shall by no means walk in darkness, but shall have the light of life." You can see that again His words are not doctrinal. The emphasis here is the "light" and the "I." It is not the practice of His teachings that makes a Christian. Rather, it is a relationship with Christ that qualifies us as one. Only by believing into Him will we receive the light of life. Only by receiving Him will we not walk in darkness.
HE IS FROM ABOVE
John 8:21-22 says, "He said therefore again to them, I am going away, and you will seek Me and will die in your sin. Where I am going, you cannot come. The Jews then said, He is not going to kill Himself, is He, for He says, Where I am going, you cannot come?" The Jews were confused again. Where is the place He is going that we cannot go? They thought that perhaps He was going to commit suicide. Actually if that place could be reached by committing suicide, the Jews could still get to it by killing themselves. How could the Lord go to a place to which they could not go? Verse 23 says, "And He said to them, You are from below, I am from above; you are of this world, I am not of this world." It is because of this that where the Lord was going they could not go.
BELIEVING OR NOT BELIEVING THAT HE IS
Furthermore, they did not die in their sins because they were murderers and adulterers. Verse 24 is crucial, especially the latter half: "Therefore I said to you that you will die in your sins; for unless you believe that I am, you will die in your sins." The King James Version added the word "he" after "I am." Let us quote the words of the original text. The Lord said, "You will die in your sins; for unless you believe that I am, you will die in your sins." The question is whether or not you believe that He is. What does this mean? It means that of the millions of people in humanity, you can pick out one and say, "This is He! This is God!" We want to examine Jesus of Nazareth to see if He indeed is! If we believe that He is, we will not die in our sins. Many are believing in a distorted Christianity, but we want to believe according to what Christianity really is. The first question we must ask is whether or not Jesus of Nazareth is.
Once again the Jews retorted by asking, "Who are You?" (v. 25). Jesus’ answer seemed to say, "This is not the first time that I tell you who I am. Concerning this matter I have never given in. I told you that I am; I am the One." Time after time He proved to others that He is; He is the Son of God.
(The Normal Christian Faith, Chapter 5, by Watchman Nee)