Some people are suspicious of ancient writings, including the Bible. Why should we trust testimony from so long ago?
First, ancient testimony is how we know most of history. We believe in Julius Caesar, Alexander the Great, or Socrates largely through writings far fewer and later than those of the New Testament. Yet historians trust them.
Second, the New Testament is supported by thousands of manuscripts, some very close in time to the originals. This makes its testimony far stronger than most ancient works.
Third, the witnesses had no reason to lie. The disciples gained no power or wealth. Instead, they faced suffering and death. Their sincerity gives credibility to their testimony.
Fourth, archaeology has confirmed many details of the Bible, showing the writers were accurate about people, places, and events. This supports their reliability.
Finally, testimony is always how history is known. We cannot go back in time, but we rely on credible witnesses. The Bible provides multiple independent testimonies, written close to the events, making it highly trustworthy.