I do not believe that Jesus made up some kind of hypothetical prayer or theological fodder that would never get asked or fulfilled, but that he spoke of his very purpose in having come. For when Jesus died and rose again, he had cast the mountain of bondage into the sea. The hypocrites who had set themselves up in the seat of Moses were removed. A new owner was brought in to reign over a new creation.
How can you realize the freedom you have in Christ? I say that you will discover it, more times than not, in the midst of the bondage that still seems to hold you down. You see, the power of the gospel is not found merely in the words of its testimony of Jesus’ death and resurrection, it is found in the reality that has been brought about because of who he is and what he has done. That reality is that Christ is in you. He is there, and his life witnesses from within you … despite all the doubts that you think actually come from within you. source