Discarded books and documents that contain the name of God in Hebrew must be buried in a genizah, and not burned or thrown in the trash.
But what if the name of God in Hebrew is in a Christian or other non-Jewish document? What if the document is secular or heretical or otherwise unholy to Jews? What should we do with the document?
(A previous answer suggested one should study the document before deciding what to do with it. But one may not want to do this. Would one be allowed to burn it based on the source alone?)