If God has been glorified in him, God will also glorify him in himself — and he will glorify him at once.
In context
30As soon as he had taken the bread, he went out. And it was night. 31When he had gone, Jesus said, “Now the Son of Man has been glorified, and God has been glorified in him. 32If God has been glorified in him, God will also glorify him in himself — and he will glorify him at once. 33Little children, I am with you only a little longer. You will look for me, and, as I told the Jews, so I tell you now: where I am going, you cannot come. 34I give you a new commandment: love one another. As I have loved you, so you also are to love one another.
