The Proof of the Gospel: Two Volumes in One

Acknowledged authors Pamphill, Eusebius wrote The Proof of the Gospel: Two Volumes in One comprising 576 pages back in 2001. Textbook and eTextbook are published under ISBN 1579106048 and 9781579106041. Since then The Proof of the Gospel: Two Volumes in One textbook was available to sell back to BooksRun online for the top buyback price or rent at the marketplace.

J. B. Lightfoot ranked Eusebius's Preparation for the Gospel and Proof of the Gospel together as "probably the most important apologetic work of the Early church."