There was no exaggeration. The disciples (the people who wrote about Jesus) were told to write everything down exactly as it happened. No exaggeration. This is going to sound like a dumb argument, but we know the Bible is true because it says it’s true. Every fact it states ties so perfectly with every other fact. Also, the world in the state it is now was prophesied. The book of revelation says that as we get closer to the second coming, life would get even worse for the churches. Every day it would get more and more tempting to believe god is not in control. Seeing the world as it is now just gives me hope