>>Tradition.
>
>Ah, but that was what got me started on this. Why is a person who swears on a holy book of his religion more trusted in this tradition, that one who doesn't have such an allegiance to any particular confession?


You'll have to ask someone who thinks like that.

It seems to be entirely unrelated from the question I asked, which is:

If swearing on the Koran is "un-Muslim", then is swearing on the Bible supposed to be less "un-Muslim"?

It was actually a rhetorical question.