To me, the key to Christianity is the Gospels. The problem here being that they were not written by eye witnesses, and decades after the events. If information can be changed by just one person to the next, then how can we know that the Gospels are accurate when the amount of people between the events and the writers will be far greater?The interesting thing is that someone put that book in your hands and you have to trust it by the nature of what it is.
If that is the word of God, and He exists to say it, then He can be held to the promises made in it in the way you received it. That the way to truth and life being handed down to you as God intended.
Well, confirming evidence would do it, but the above tacitly admits there isn't any.It's all up to you. Nobody can force your hand nor argue you into it.
He's welcome to do that as He would know what would convince me. But what's not in it's favour is that when I've heard stories of Him doing that to others, a more prosaic, down to earth reason for the story is just as likely if not more so than God actually revealing Himself is.As you know it would need to be God proving something to you because Lord knows you haven't found it elsewhere.