If someone truly has ultimate authority, and they know without a doubt who they are, what their mission is, and what the outcome will be, then they do not need to “prove themselves” to anyone. Politicians prove themselves. Experts prove themselves. Even false Messiahs have tried to prove themselves. God does not need to prove Himself. But He is interested in what we think.
Matthew 22:41-46 ~ The Messiah
Most people will agree that a man named Jesus lived around the time of 30 AD. And history tells us that the Pharisees did everything in their power to kill him. After the stories of Jesus’ resurrection came to be known and belief in the Messiah was spreading quickly, it seems plausible that those same Pharisees would do everything in their power to find the dead body and shut this down. After all, if it had been a hoax and Jesus was not the Messiah and Son of God, then there would have been a body. With all the publicity, the Roman guards and the heavy stone in the way, somebody would have seen something, said something, or produced some evidence. It would have been too big of a story to hide. And eleven disciples would not spend the next 30 years being tortured and martyred for a hoax.
If God is unable to raise someone from the dead, then He is unable to give us eternal life after death. What do you think?