Even the Ten Commandments require interpretive choices Jacobs didn't expect

Jacobs discovers early that even the most universally recognized biblical rules generate immediate practical questions the text itself doesn't answer. The commandment against lying, for instance, collides constantly with ordinary social convention, such as complimenting a friend's questionable haircut, forcing him to decide in real time where politeness ends and sin begins. Similarly, the prohibition on coveting turns out to be almost impossible to avoid living in a media-saturated modern city, where advertising is engineered specifically to generate desire.

He treats these small daily dilemmas as evidence of a much bigger point: that translating ancient moral commands into functioning modern behavior requires constant judgment calls that the commandments themselves don't resolve. Nobody, including committed religious literalists, actually operates on the text alone without some framework of interpretation layered on top.

Takeaway: even the simplest-sounding rule needs a judgment call the moment you try to actually live by it.