John 13:27-35 So, when he had gone out, Jesus said,

John 13:27 Now after the piece of bread, Satan entered him. Then Jesus said to him, "What you do, do quickly."28 But no one at the table knew for what reason He said this to him. 29 For some thought, because Judas had the money box, that Jesus had said to him, "Buy those things we need for the feast," or that he should give something to the poor. 30 Having received the piece of bread, he then went out immediately. And it was night. 31 So, when he had gone out, Jesus said, "Now the Son of Man is glorified, and God is glorified in Him. 32 "If God is glorified in Him, God will also glorify Him in Himself, and glorify Him immediately. 33 "Little children, I shall be with you a little while longer. You will seek Me; and as I said to the Jews, 'Where I am going, you cannot come,' so now I say to you. 34 "A new commandment I give to you, that you love one another; as I have loved you, that you also love one another. 35 "By this all will know that you are My disciples, if you have love for one another."

In this section of Scripture we see that Jesus has given Judas the bread and at that point, the devil enters Judas. Judas willingly invited the devil into his life and it cost him all of eternity in hell. Jesus tells him to go ahead and betray Him since that is what Judas intended to do. When Judas has left Jesus states that now He (the Son of Man) is glorified. What Jesus means is the way He is going to be glorified is by dying on the cross for our sins. Jesus speaks of it as if it had already happened, since it was going to and He knew it would. Judas goes out and it is night, there is a double meaning here since John always speaks of darkness as error, lies, and sin. Then Jesus proceeds to tell them He is going to heaven even though He says it in terms they don’t understand. Lastly, Jesus gives us that famous statement a new commandment I give to you, that you love one another; as I have loved you, that you also love one another. 35 "By this all will know that you are My disciples, if you have love for one another." We are to love one another no matter what happens is what He is saying. He then says it will be known that we belong to Jesus is by the way we show our love to each other.