Let’s expand that passage out a bit.
John 12: NASB
30Jesus answered and said,
“This voice has not come for My sake, but for your sakes. 31“Now judgment is upon this world; now the ruler of this world will be cast out. 32“And I, if I am lifted up from the earth, will draw all men to Myself.” 33But He was saying this to indicate the kind of death by which He was to die.
34The crowd then answered Him, “We have heard out of the Law that the Christ is to remain forever; and how can You say, ‘The Son of Man must be lifted up’? Who is this Son of Man?”
35So Jesus said to them,
“For a little while longer the Light is among you. Walk while you have the Light, so that darkness will not overtake you; he who walks in the darkness does not know where he goes. 36“While you have the Light, believe in the Light, so that you may become sons of Light.”
These things Jesus spoke, and He went away and hid Himself from them.
37But though He had performed so many signs before them,
yet they were not believing in Him.
38This was to fulfill the word of Isaiah the prophet which he spoke: “LORD, WHO HAS BELIEVED OUR REPORT? AND TO WHOM HAS THE ARM OF THE LORD BEEN REVEALED?” 39For this reason they could not believe, for Isaiah said again, 40“HE HAS BLINDED THEIR EYES AND HE HARDENED THEIR HEART, SO THAT THEY WOULD NOT SEE WITH THEIR EYES AND PERCEIVE WITH THEIR HEART, AND BE CONVERTED AND I HEAL THEM.”41These things Isaiah said because he saw His glory, and he spoke of Him.
42Nevertheless many even of the rulers believed in Him, but because of the Pharisees they were not confessing
Him, for fear that they would be put out of the synagogue;
43for they loved the approval of men rather than the approval of God.
44And Jesus cried out and said,
“He who believes in Me, does not believe in Me but in Him who sent Me. 45“He who sees Me sees the One who sent Me. 46“I have come as Light into the world, so that everyone who believes in Me will not remain in darkness. 47“If anyone hears My sayings and does not keep them, I do not judge him; for I did not come to judge the world, but to save the world. 48“He who rejects Me and does not receive My sayings, has one who judges him; the word I spoke is what will judge him at the last day. 49“For I did not speak on My own initiative, but the Father Himself who sent Me has given Me a commandment as to what to say and what to speak. 50“I know that His commandment is eternal life; therefore the things I speak, I speak just as the Father has told Me.”
