Whitcomb concludes his section of the work with a review of how geological theories had influenced Christian views of the Flood since the beginning of the nineteenth century and draws the "one vitally important lesson," that the biblical doctrine of the Flood cannot be harmonized with "uniformitarian theories."
Whitcomb menutup bagiannya dengan pembahasan bagaimana teori geologi mempengaruhi pandangan Kristen mengenai Air bah sejak permulaan abad ke-19 dan menarik "suatu pelajaran sangat penting," bahwa doktrin Alkitab tentang Air bah tidak dapat diharmonisasi dengan "teori-teori uniformitarian."