Originally posted by Kamikaze
So if hte man showed wisdom and did miracles you'd believe him?
Well, it would be good of us to point out something that hasn't come up yet. We believe not just on merely rationalistic bases. There is also the vitally necessary act of the Holy Spirit in leading us to faith. The old-fashioned word for it is "illumination." Basically, God shines the light of truth into our hearts and minds, showing us the truth. We are brought to faith (which we can then choose or reject) by the action of the Holy Spirit's speaking to us and bringing the truth into our hearts. This isn't to say that it is an irrational process, as in negating the rational, but instead it is to say that reason
by itself cannot bring us to faith (in anything, for that matter). Reason always flops around in the possible but can never find the truth. As we talked about before, Kamikaze, even believing in our senses is a matter of faith, not reason.
Reason can work on the truth it is shown, but for us to know God at all, he has to show himself to us first, or reason has nothing to work with. We know God because he reveals himself to us, and so whether I'd believe that man would depend on whether the Holy Spirit did work in my mind and heart to show me that this was indeed God.
(NB: I'd be inclined to doubt this if it ever happened because it would be a direct contradiction of Jesus' own words to us, and thus I have very good reason to belive the Holy Spirit will never do such a thing if such an event were to occur. Indeed, the Bible warns that many false Christ's would come claiming to be him, but that we should not believe any of them, for his return will be unmistakeable, the "end of the world," though "renewing and fixing of the world" might be a better description)