How can we know the Bible is Reliable?

2 Timothy 3:16 "All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness."  How can we know the Bible is reliable?  The validity of the scriptures is under attack like never before.  Often those who claim to adhere to its tenets are looked on as ignorant and uninformed. Much of the prevailing attitude is the result of secular humanism but ultimately it is the attack of  Satan himself who hates the truth.
    The Bible is an amazing book comprised of 66 books recorded by approximately 40 authors covering an approximate time frame of 4000 years.  The mere fact that 40 authors could agree on a common subject over that time span is amazing in itself.
    The Bible is an accurate history book that names and locates many people groups such as the Egyptians,Syrians, Medes and Persians.  It speaks of their Kings and rulers and records significant events of those nations.
    It is also book of geography.  I once visited a museum that was featuring relics and artifacts discovered at a digsite of the ancient city of Ur, the home of Abraham (Gen. 11:31).  The archeologist performing the excavation had used the Bible to locate this city.  Many of the cities and surrounding geographical features such as mountains and rivers can still be located today.
    Finally, what I believe to be the most telling evidence in favor of the Bible is it's prophecies.  Prophecies of the coming messiah (Gen.3:15, Isa.7:14 and Isa.53), the crucifixion (Ps.22) and future nations and events(Dan.9) foretold hundreds of years in advance confirm the Bible to be accurate and truly inspired of God.  The Bible is filled with hundreds of prophecies that have been fulfilled and a relatively short few yet to take place and no matter what events occur we can take comfort in knowing God's Word, the Bible is true.