Swearing an oath on the bible is handy in Court. When they ask if you 'understand' anything from whatever got you in court in the first place, you can say that "I don't need to know about that. I can only be questioned on the bible. Its only that which I have sworn on."
Printed copy · Anthology Volume 4, page 355Printed copy from The Tender For Law Anthology, Volume 4, page 355 (printed 13 June 2014). Added by this site; not part of the Facebook export.