Necessary, but not sufficient

[T]he doctrine of the sufficiency of Scripture does not deny that we can be greatly helped in our desire to know the original meaning of biblical texts with these extrabiblical recourses, and that is our point in this book. We are helped in our attempt to understand the author’s intended meaning in the flood story by both ancient Near Eastern accounts of the flood and also scientific conclusions related to the possibility of a worldwide deluge.—Lost World of the Flood, 171