Fulfilled prophecies provide strong support for the divine authorship of the Bible.
http://www.jesus-is-lord.com/divine.htm#ch5
Chapter Five
The Fulfilled Prophecies of the Bible Bespeak the Omniscience of its Author
In Isaiah 41:21-23 we have what is probably the most remarkable challenge to be found in the Bible. "Produce your cause, saith the Lord; bring forth your strong reasons, saith the King of Jacob. Let them bring them forth, and show us what shall happen; let them show the former things, what they be, that we may consider them, and know the latter end of them; or declare us things for to come. Show the things that are to come hereafter, that we may know that ye are gods." This Scripture has both a negative and a positive value: negatively it suggests an infallible criterion by which we may test the claims of religious impostors; positively, it calls attention to an unanswerable argument for the truthfulness of God's Word. Jehovah bids the prophets of false faiths to successfully predict events lying in the far distant future and their success or failure will show whether or not they are gods or merely pretenders and deceivers. On the other hand, the demonstrated fact that God alone grasps the ages and in His Word declares the end from the beginning, shows that he is God and that Scriptures are His Inspired Revelation to mankind.
Again and again men have attempted to predict future events but always with the most disastrous failure, the anticipations of the most far-seeing and the precautions of the wisest are mocked repeatedly by the bitter irony of events. Man stands before an impenetrable wall of darkness, he is unable to foresee the events of even the next hour. None knows what a day may bring forth. To the finite mind the future is filled with unknown possibilities. How then can we explain the hundreds of detailed prophecies in the Scriptures which have been literally fulfilled to the letter, hundreds of years after they were uttered? How can we account for the fact that the Bible successfully foretold hundreds, and in some instances thousands of years beforehand, the History of the Jews, the Course of the Gentiles, and the Experiences of the Church? The most conservative of critics, and the most daring assailants of God's Word are compelled to acknowledge that all the Books of the Old Testament were written hundreds of years before the incarnation of our Lord, hence, the actual and accurate fulfillment of these prophecies can only be explained on the hypothesis that "Prophecy came not at any time by the will of men: but holy men of God, spake, moved by the Holy Ghost."