” . . . [E]ven the most rigorously exegetical readers are eisegetical, or might be called so by someone more rigorously exegetical than thou. Everyone brings information to the text that is not in the text, and seeks to illuminate the text with light from outside. They fill in the gaps between words and sentences to produce a whole picture. That is perfectly fine and, I have been arguing, inescapable. What is not fine is the pretense that literal reading does not involve this process, the claim that a reading is doing nothing but getting what is there.
“It is quite common, for instance, to suggest that the setting for John 9 is in the temple precincts, and that this narrative forms the climax to a series of incidents during the Feast of Tabernacles. This seems perfectly reasonable, and illuminates several details of John’s account. But the fact is that John 9 nowhere says that Jesus is in the temple, or that it is the Feast of Booths. That has to be plucked up from the context and read into John 9. Such a procedure looks sleekly scientific, grammatical-historical, and literal. If one suggests that Jesus working with the clay should be read in the light of Old Testament potter-and-clay passages (as I will below), many would cry foul, or, more likely, ‘eisegete!’ In principle, though, there is no difference between reading the Feast of Booths into John 9 and reading Jeremiah 18 into John 9. The fact that one text is further away than the other appears to make on literal and the other arbitrary. But in principle, it is the same procedure, and Jeremiah 18 is no further from John than, say, Homer is from Virgil. Certainly Jeremiah 18 is at least as close to John as the Jamnia Council, that symbolic marker of the parting of the ways of Jews and Christians, which is often proposed as the master historical context for John’s narrative. Studying historical context, extrabiblical usage of words, archaeology—that all looks scientific and scholarly, but it is just as much eisegesis as apostolic allegory.”
Peter Leithart, Deep Exegesis: The Mystery of Reading Scripture (Waco: Baylor University Press, 2009), pages 116-7.
Allow me only to say that this is a fantastic book that should be read by everyone.