For God is my witness, how greatly I long for you all with the affection of Jesus Christ. And this I pray, that your love may abound still more and more in knowledge and all discernment, that you may approve the things that are excellent, that you may be sincere and without offense till the day of Christ, being filled with the fruits of righteousness which are by Jesus Christ, to the glory and praise of God. --Philippians 1:8-11
Imagine it is the year 2450. NASA has established a colony on Mars. It is the highlight of human scientific achievement. But as the years go by there are economic depressions, wars, and protests against "sending money into space while children starve here on Earth." Communication with the Red Planet stops, and the space shuttle missions taking supplies start to become less frequent until they finally stop.
The people in the Martian outpost become discouraged. Their existence becomes more and more hopeless. Over time they adapt to find ways to survive the darkness, the cold, and the isolation. After several generations, the stories of life on Earth seem less real and more like a fable or myth.
Suddenly, a gleaming metallic orb is seen in the sky. As it approaches, its light shines brighter than the sun. As its orbit descends and the craft achieves touchdown on the surface, a loudspeaker proclaims their mission. "Good people of Mars, the people of Earth send greetings. We bring good news, for we come with food, clothing, medicines, and building supplies. Come and see. For those who want to leave, we will take you back to Earth with us."
What do you think the reaction of the colonists might be? Some might be afraid and run away. Others may stand at a distance and watch with guarded curiosity. Others might come close, grab a morsel, and run away like a scared rabbit, telling others to watch out. There might only be a few who believe the message and approach the vessel. These few have faith in the space travelers, and only they will receive the gifts offered to them.
This story shows us how our human nature sometimes leads people to not act in their own self-interest.
Many who study the New Testament will wonder how those people in the past could hear the words of Jesus and see His mighty works and not believe. In the 12th chapter of John's Gospel, we are reminded that God had prophesied that most people would not believe. The God who made us knows us intimately.
But although He had done so many signs before them, they did not believe in Him, that the words of Isaiah the prophet might be fulfilled, which he spoke: "Lord, who has believed our report? And to whom has the arm of the Lord been revealed?" Therefore they could not believe, because Isaiah said again: "He has blinded their eyes and hardened their hearts, les they should see with their eyes, lest they should understand with their hearts and turn, so that I should heal them. These things Isaiah said when he saw His glory and spoke of Him. --John 12:37-41
John's narrative has several themes: Signs. Glory. Faith. All of these are emphasized here in the summary of the Gospel to this point. Some Bible scholars divide John's Gospel into two unequal parts: the Book of Signs (1:1-12:50) and the Book of Glory (13:1-21:25). NT Wright in his commentary John for Everyone writes
John has been telling us the story of a new creation. The 'signs' have been building up: water into wine in chapter 2, the nobleman's son in chapter 4, the healing of the cripple in chapter 5, the bread in the desert in chapter 6, the man born blind in chapter 9, and most recently the raising of Lazarus in chapter 11. And John has hinted, and will say again later (20:30), that Jesus did many, many other 'signs' as well. These six are just the tip of the iceberg, selected to make their individual points about new creation, new dimensions to God's work, new Exodus, new life, new light. And yet...
And yet they did not believe, just like God had predicted in Isaiah 53:1 and Isaiah 6:9-10. Does God know human nature, or what? He also knew about those who would hang out around the edges, believing but not committing.
Nevertheless even among the rulers many believed in Him, but because of the Pharisees they did not confess Him, lest they should be put out of the synagogue; for they loved the praise of men more than the praise of God. --John 12:42-43
Scottish theologian William Barclay said that secret discipleship is a contradiction in terms, for "either the secrecy kills the discipleship, or the discipleship kills the secrecy.” Jesus had just explained in verse 26 that if anyone served Him, they would receive honor from God. Yet there were many who loved the honor that comes from other men more than the praise that comes from God.
Then Jesus cried out and said, "He who believes in Me, believes not in Me but in Him who sent Me. And he who sees Me sees Him who sent Me. And he who sees Me sees Him who sent Me. I have come as a light into the world, that whoever believes in Me should not abide in darkness. And if anyone hears My words and does not believe, I do not judge him; for I did not come to judge the world but to save the world. He who rejects Me, and does not receive My words, has that which judges him--the word that I have spoken will judge him in the last day. For I have not spoken on My own authority; but the Father who sent Me gave Me a command, what I should say and what I should speak. And I know that His command is everlasting life. Therefore, whatever I speak, just as the Father has told Me, so I speak. --John 12:44-50
I am not a Greek scholar, but I am told that the verb tense in verse 44, when John says that Jesus cried out, indicates that He kept on crying out. In other words, this was a recurrent theme. This passage echoes Christ's conversation with Nicodemus in John 3. Here where John writes about light and darkness, we are reminded of John 3:19, "And this is the judgment, that the light has come into the world, and people loved darkness rather than light." And when John writes about judgement, we hear John 3:17 where it says, "God did not send the Son into the world to condemn the world, but in order that the world might be saved through Him." And when John says that Jesus is speaking the words given to Him by the Father, we hear John 3:34, "He whom God has sent speaks the words of God, for He gives the Spirit without measure."
Again from NT Wright
We do well to ponder all this, to reflect on our own response to John's portrait of the Word made flesh. This is the point in the story when Jesus speaks to the crowds in Jerusalem for the last time. The next time they see Him it will be as a prisoner, standing before Pilate. He will be on trial, and His words will be sifted as evidence against Him. But the real trial is already under way, here in chapter 12. Jesus is staring into darkness, and the darkness is staring back. And everyone who reads this chapter must, sooner or later, make up their minds which side they're on.
As God is my witness, I could not have said it any better myself.