Why Believe the Bible? Internal Evidence
The Bible teaches one purpose and one way to salvation from Genesis to Revelation.
Go to any university today and ask 40 people to answer one question: What is the purpose of life? What would you expect? You would expect 40 different answers, depending on the background of the persons you asked. And these persons would have some commonalities. They would be all contemporaries, and all belonging to one school. They would all know the same current events, all speak the same language, and share the same time in history.
Now suppose you could put the same question to the authors of the Bible. The 66 books that compose the Bible were written by some 40 different authors. But these authors were not all contemporaries acquainted with the same current events—they wrote at various times during a period of some 1500 years. They spoke at least 3 different languages. And they were not all living in one area or belonging to one school—they lived on three different continents and came from all walks of life. Some were scholars and teachers, some were kings, some were fishermen, some herdsmen, statesmen, even a doctor.
Yet what do we read in the Bible? They all proclaimed one supreme, all-powerful God and taught one way to salvation. They also had the same understanding of the purpose of life and the plan of God. All are in agreement on every point they address (the nature of man, life after death, God’s plan of salvation, etc.).
How is this humanly possible? It is not. It could not be except by one supreme, all-knowing God overseeing the entire work, guiding each writer to communicate His knowledge accurately.