What about the scriptures in other religions? What about people who lived before Jesus' time or who lived in a different part of the world?
There are many scriptures written. I'd have to research which copies are older than the Torah. However, the prophets of God (Jehovah/Yahweh) prophesied about a coming Messiah - the annointed one of God - Savior and redeemer of the world.
When Jesus came on the scene, he was identified by some, as that one, and he gained followers.
Jesus said, I... am the way... the truth... and the life. No one comes to the father, except through me.
He said, he came to bear witness to the truth, about his father, which had not been told for centuries.
True, many do not believe that Jesus is the true Messiah, his credentials identified him as the Messiah, to many followers... such as Peter, James, John, Paul... and millions today.
What about you. Do you believe Jesus? Do you believe Jesus is the way... the truth... and the life, and no one comes to the father, except through him?