A tactical device
“It is true that as Paul debated on Mars Hill or spoke to the gullible crowd in Lystra, he did not work from his Jewish Scriptures as he did in the synagogues. But this was a tactical device. He reduced the differences between himself and his audience almost to a vanishing point, but only so as to stress his distinctiveness more clearly once they had seen his point.”
Os Guinness, The Gravedigger File (Downers Grove, 1983), page 201.