Why do you believe in a God?

[Bob Kelso]

I think that we should be open to scientific discovery as well as the testimonies of the experience of people since the beginning of recorded history. If the overwhelming majority of people have believed in God, I would put a lot of weight on that.

This is called argumentum ad populum, as Kitanetos pointed out, and here is a link for your convenience.

http://en.wikipedia.org/wiki/Argumentum_ad_populum

Seriously Lek, you've got to stop resorting to ad. pop.