And there were certain Greeks among those who came up that they might worship in the feast;
References for John 12:20
these therefore came to Philip, who was of Bethsaida of Galilee, and they asked him saying, Sir, we desire to see Jesus.
Philip comes and tells Andrew, [and again] Andrew comes and Philip, and they tell Jesus.
But Jesus answered them saying, The hour is come that the Son of man should be glorified.
Verily, verily, I say unto you, Except the grain of wheat falling into the ground die, it abides alone; but if it die, it bears much fruit.
He that loves his life shall lose it, and he that hates his life in this world shall keep it to life eternal.
If any one serve me, let him follow me; and where I am, there also shall be *my* servant. [And] if any one serve me, him shall the Father honour.
Now is my soul troubled, and what shall I say? Father, save me from this hour. But on account of this have I come to this hour.
Father, glorify thy name. There came therefore a voice out of heaven, I both have glorified and will glorify [it] again.
The crowd therefore, which stood [there] and heard [it], said that it had thundered. Others said, An angel has spoken to him.
Jesus answered and said, Not on my account has this voice come, but on yours.
Now is [the] judgment of this world; now shall the prince of this world be cast out:
and I, if I be lifted up out of the earth, will draw all to me.
But this he said signifying by what death he was about to die.
The crowd answered him, We have heard out of the law that the Christ abides for ever; and how sayest thou that the Son of man must be lifted up? Who *is* this, the Son of man?
Jesus therefore said to them, Yet a little while is the light amongst you. Walk while ye have the light, that darkness may not overtake you. And he who walks in the darkness does not know where he goes.
References for John 12:35
While ye have the light, believe in the light, that ye may become sons of light. Jesus said these things, and going away hid himself from them.