When Jesus speaks of the glory he "had" before the foundation of the world in that verse from John, it doesnt say Jesus preexisted with God. The preexistence of Jesus' glory with God is like God's reward to believers preexisting in Col1:5,1Pet1:4,Matt25:34. So Jesus is asking for this preexisting reward to be given now that he reached the end of his mission. Neither the believers, nor Jesus are gods for having their reward and glory preexisting with God. Also in v1-3 Jesus says there is only one true God who He addressed as Father, he is seperating himself from God.Doesn't he remember that Jesus said "Father glorify your son with the glory I had with you before the world was?" If he can't remember verses like that how can he memorize the Quran?