But despite all the miraculous signs he had done, most of the people did not believe in him.
This is exactly what Isaiah the prophet had predicted: "Lord, who has believed our message? To whom will the Lord reveal his saving power?"
References for John 12:38
But the people couldn't believe, for as Isaiah also said,
"The Lord has blinded their eyes and hardened their hearts -- so their eyes cannot see, and their hearts cannot understand, and they cannot turn to me and let me heal them."
References for John 12:40
Isaiah was referring to Jesus when he made this prediction, because he was given a vision of the Messiah's glory.
Many people, including some of the Jewish leaders, believed in him. But they wouldn't admit it to anyone because of their fear that the Pharisees would expel them from the synagogue.
For they loved human praise more than the praise of God.
Jesus shouted to the crowds, "If you trust me, you are really trusting God who sent me.
For when you see me, you are seeing the one who sent me.
I have come as a light to shine in this dark world, so that all who put their trust in me will no longer remain in the darkness.
If anyone hears me and doesn't obey me, I am not his judge -- for I have come to save the world and not to judge it.
But all who reject me and my message will be judged at the day of judgment by the truth I have spoken.
I don't speak on my own authority. The Father who sent me gave me his own instructions as to what I should say.
And I know his instructions lead to eternal life; so I say whatever the Father tells me to say!"