I just came across this most interesting resource: Treasury of the New Testament.

Though in reality, it is only on John 1-15 (and doesn't look like it will grow fast at all, at least based on the "what's new" page).

If you're familiar with the concept behind IVP's Ancient Christian Commentary on Scripture Series (ACCS) then this will be interesting to you. It looks like someone has interspersed (and footnoted) patristic commentary — in Greek — inside of the Gospel of John. The gospel text is that of the Orthodox Church, I'm guessing.

This is very cool, at least to me. It means I can feel good about reading the John portions but can stretch myself on the patristic portions.

So check it out. Here's John 3 for starters.

Enjoy!