Is the Bible Reliable?

First, the Bible was endorsed by Jesus. Today, a book's credibility is often bolstered by "blurbs" written on the book jacket by a famous person or an expert in a particular field. Their credibility is used to establish the book's credibility. For the Christian, there is no more credible figure in history than Jesus, and he threw his entire weight behind the Bible (see Matthew 5:18; John 10:35).
Second, the integrity of any ancient writing is determined by the number of documented manuscripts or fragments of manuscripts we have to examine. For example, there are also less than ten existing copies of the ancient manuscripts of Plato which are available to study and compare in order to determine the accuracy and quality of the transmission of his writings throughout the years. The oldest of these manuscripts is a copy dating about 1400 years after it was originally written.
When it comes to the Bible, there are over 5,000 handwritten manuscripts in the Greek language in support of the New Testament alone that help us ensure the accuracy of its writings. Many of the earliest copies are separated from the originals not by 1400 years, but by only twenty-five to fifty years.
Simply put, the Bible is the most dependable ancient document in all of history in terms of textual credibility.
Third, the Bible has been supported at every juncture by archaeology. Sir William Ramsay of Oxford University, regarded as one of the greatest archaeologists ever to have lived, concluded upon his own examination that the writers of the Bible are historians of the first rank that should be placed along with the very greatest of historians. So overwhelming was the support of the archaeological evidence that Ramsay eventually became a Christian.
The historical integrity of the Bible also extends to the Bible's record of such things as the teachings of Jesus. Recent evidence has determined that such biblical records as the gospel of Matthew are truly first-hand, eyewitness accounts written as early as A.D. 50, as opposed to layers of stories and traditions that were added over a kernel of Matthew's actual writings throughout history.
The Bible is the most reliable document imaginable, and can be read by the spiritual seeker with confidence.