The Athanasian Creed - A Commentary

With Trinity Sunday coming up I feel moved to do a commentary on the Athanasian Creed. I've really been thinking a lot about this particular expression of Faith for a year now. I'll go line by line in a series of posts to give some of my thoughts. The first post is likely to be quite long, because I've spent the most time thinking about the implications of just the first two lines: what do they mean? What do they mean today?