A very concise and accurate statement by Farrell Till concerning biblical prophecy. Excerpted from Prophecy Fulfillment And Probability, The Skeptical Review, 1993 / July-August:
...Mr. Dobbs alleged that the miracles of Jesus had been prophesied in Isaiah 53:4-5, his crucifixion in Psalms 22:16, his resurrection in Psalm 16:10, and his ascension in Psalm 68:18. Examination of these passages in context, however, reveal the same problem that Earle Beach and I discussed above relative to Jeremiah 31:15. The statements are notoriously obscure and become prophecies only through the arbitrary claims of the New Testament writers who lifted them out of context and applied them to situations that the original writers were not referring to. So there is no way that anyone can establish that these "prophecies" were originally intended to be prophecies. All we have is the mere unsubstantiated word of the New Testament claimants that they were meant to be prophecies, and that is not a good enough foundation to build a probability argument on.