Driving back from Chester today I listened to Mike Reeves' 2 part introduction to the 'Apostolic Fathers' - 10 key documents from the first and second century AD.
They're worth a listen: click here to listen to them or download them from the Theology Network website.
Two things are particularly interesting. The first is just how messed up some opinions were. But more interesting and encouraging is to see how similar some of the writing of the 2nd century is to that of the Reformers. It's encouraging (though not surprising if you actually bother to read the Bible) that we are saying the same things as the Reformers of the 16th century... and that they weren't being original but were saying the same things as people in the 2nd century who were just teaching what God had revealed.