Don't you really mean we should follow the principle as told and understood through the memory and filter of small tribes hundreds of years ago? (religion.blogs.cnn.com)
For example, I belong to a tribe of travel writers and outdoor writers, a smaller group of adventure travel writers, a really small group of motorcycle adventure travel writers, and an even smaller tribe of women motorcycle adventure travel writers. (ingramspark.com)
Our awareness that the very survival of a relatively small tribe struggling against external challenges depended significantly upon abundant procreation helps us to understand this emphasis. (religion-online.org)