the short answer is: intrinsically they are not sacred ...just as all religious writing is not.What makes those words 'sacred'?
the belief in them gives the illusion of sacredness and that is the cause of the greatest and most destructive events in history.[/QUOTE]
Daws,
The meaning of sacred is:
connected with God (or the gods) or dedicated to a religious purpose and so deserving veneration.
https://www.google.com/#q=definition+sacred
They have a religious purpose and or they are connected with God. That would make them sacred. You didn't specify why in your response other than that is what you think.