From DIY Scholar:
“De omnibus dubitandum.”
Say it loud, he tells his students. Say it with feeling. “Say it tonight, before you go to sleep. Say it in the morning, when you wake. Every day of the semester say it before you go to sleep.”
What does it mean? Doubt everything. “And that includes me, because I’m going to lie to you a lot all semester long. Or, at least, somebody will accuse me of that I guarantee.”
With his Texas twang and exhortations such as these, Martin’s speaking style has a passing resemblance to the cadences of a televangelist. Indeed Martin, a self-described “former fundamentalist” repeatedly emphasizes that it’s perfectly legitimate to read the New Testament through the eyes of faith.
But he has a different mission. He wants to teach his students to read the New Testament critically, as historical documents with a context and an agenda. He shows the class how it’s done in lecture 5, The New Testament as History, in which he contrasts the itinerary of Paul’s ministry in Acts of the Apostles with Paul’s own account of his travels in his letters. Then he asks the students to explain the many conflicts and contradictions.
Who is more likely to be telling the truth, Martin wants to know. Is it Paul or the author of Acts? They can’t both be right. And its the job of the doubting historian to try to pull apart each side’s likely motives to get at the truth.