The Son of Man Must Be Lifted Up
Then there came a voice out of the sky, saying, “I have both glorified it, and will glorify it again.” 29 The multitude therefore, who stood by and heard it, said that it had thundered. Others said, “An angel has spoken to him.” 30 Jesus answered, “This voice hasn’t come for my sake, but for your sakes. 31 Now is the judgment of this world. Now the prince of this world will be cast out. 32 And I, if I am lifted up from the earth, will draw all people to myself.” 33 But he said this, signifying by what kind of death he should die. 34 The multitude answered him, “We have heard out of the law that the Christ remains forever.  How do you say, ‘The Son of Man must be lifted up?’ Who is this Son of Man?” 35 Jesus therefore said to them, “Yet a little while the light is with you. Walk while you have the light, that darkness doesn’t overtake you. He who walks in the darkness doesn’t know where he is going. 36 While you have the light, believe in the light, that you may become children of light.” Jesus said these things, and he departed and hid himself from them.
The Unbelief of the Jews
“Lord, who has believed our report?
To whom has the arm of the Lord been revealed?”  39 For this cause they couldn’t believe, for Isaiah said again, 40 “He has blinded their eyes and he hardened their heart,
lest they should see with their eyes,
and perceive with their heart,
and would turn,
and I would heal them.”  41 Isaiah said these things when he saw his glory, and spoke of him. 
42 Nevertheless even of the rulers many believed in him, but because of the Pharisees they didn’t confess it, so that they wouldn’t be put out of the synagogue, 43 for they loved men’s praise more than God’s praise.
The Judgment of Jesus' Word
44 Jesus cried out and said, “Whoever believes in me, believes not in me, but in him who sent me. 45 He who sees me sees him who sent me. 46 I have come as a light into the world, that whoever believes in me may not remain in the darkness. 47 If anyone listens to my sayings, and doesn’t believe, I don’t judge him. For I came not to judge the world, but to save the world. 48 He who rejects me, and doesn’t receive my sayings, has one who judges him. The word that I spoke, the same will judge him in the last day. 49 For I spoke not from myself, but the Father who sent me, he gave me a commandment, what I should say, and what I should speak. 50 I know that his commandment is eternal life. The things therefore which I speak, even as the Father has said to me, so I speak.”
12:34 Isaiah 9:7; Daniel 2:44 (but see also Isaiah 53:8)
12:38 Isaiah 53:1
12:40 Isaiah 6:10
12:41 Isaiah 6:1