but having suffered before and been shamefully treated, as you know, at Philippi, we grew bold in our God to tell you the Gospel of God in much conflict.

 (a) It was being said that Paul's preaching came from sheer delusion. A really original man will always run the risk of being called mad. Festus thought that Paul was mad in later days ( Acts 26:24). There was a time when Jesus' friends came and tried to take him home because they thought that he was mad ( Mark 3:21). The Christian standards can be so different from the standards of the world that he who follows them with a single mind and a burning enthusiasm can appear to other men to be off his head. 