I think I've encountered that testimony before, probably right here on FR. It's a good one.
I'll go to the link and read it again, and save it this time.
Four Witnesses - The Early Church in Her Own Words, by Rod Bennett.
Product Description
What was the early Church like? Contrary to popular belief, Rod Bennett shows there is a reliable way to know. Four ancient Christian writersfour witnesses to early Christianity left us an extensive body of documentation on this vital subject, and this book brings their fascinating testimony to life for modern believers. With all the power and drama of a gripping novel, this book is a journey of discovery of ancient and beautiful truths through the lives of four great saints of the early ChurchClement of Rome, Ignatius of Antioch, Justin Martyr, and Irenaeus of Lyons.