Here's his bit about New Testament:
For a Christian, of course, being able to read the New Testament in its original form is a very significant advantage. Those who have spent any time investigating what we do at Scholars Online will realize that this is perhaps an odd thing to bring up, since we don’t teach New Testament Greek as such. My rationale there is really quite simple: the marginal cost of learning classical Attic Greek is small enough, compared with its advantages, that there seems no point in learning merely the New Testament (koine) version of the language. Anyone who can read Attic Greek can handle the New Testament with virtually no trouble. Yes, there are a few different forms: some internal consonants are lost, so that γίγνομαι (gignomai) becomes γίνομαι (ginomai), and the like. Yes, some of the more elaborate constructions go away, and one has to get used to a range of conditions (for example) that is significantly diminished from the Attic models I talked about above. But none of this will really throw a student of Attic into a tailspin; the converse is not true. Someone trained in New Testament Greek can read only New Testament Greek. Homer, Euripides, Plato, Aristotle, Sophocles, Herodotus, Thucydides — all the treasures of the classical Greek tradition remain inaccessible. But the important contents of the New Testament and the early Greek church fathers is open even with this restricted subset of Greek — and they are very well worth reading.