This essay critiques the work of William Whiston, a prominent theologian and scholar in the early 18th century, who made erroneous claims about two Arabic manuscripts in the Bodleian Library. Joannes Ernestus Grabe systematically dismantles the arguments put forth by Whiston and provides a thorough analysis of the manuscripts in question, making this a must-read for students of theology and Islamic studies. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.