Paul's personal testimony now takes a new direction. It is still an account of his own life and ministry, but now it involves information that demonstrates three very important things. One, the legitimacy of his own apostleship. Two, his relationship to the other apostles. And three, that they all preach the same gospel. There are places in Galatians where the errors and the activities of the Judaizers are clear. We know what they were saying and we know what they were doing. In other places, we are trying to piece together elements of their false influence by what Paul is contending and emphasizing. In other words, we hear Paul and we get a sense of what he's battling. We know in general terms what he is having to fight against, even though some of the details aren't clear.