There are a few things about the idea of "development of doctrine" that confuse me. On the face of it, the idea is simple enough to be a truism. Of course, if you take God's truth, ie revelation, and move with it through 2 millenia, putting it in encounter with many historical events and social trends, not to mention people of genius not just in philosophy and theology but in linguistics, art, music and poetry -- you are going to have something that has built up many -- let's say branches? -- or maybe facets? that may not have been necessary or explicitly evident to our ancestors in the faith. On the other hand, except in a kind of analogical sense it doesn't seem to be true that we "know" more now than we did then. We moderns tend to say and think that we "know" more than our forefathers, meaning that the human race has a more scientific understanding of physical laws and can do various technological things that would have astounde...