It's possible that it's an accurate quote, and that Thompson muffed the line. Even so, it's true, the most basic of laws -- don't murder, don't steal, don't defraud -- all have Ten Commandments roots.
And while I would never take a position arguing that "the most basic of laws -- don't murder, don't steal, don't defraud -- all have Ten Commandments roots," is anything but fact, I don't see a viable candidate for the office of POTUS trying to make that point on the campaign trail.