"Some theists in evolutionary science acquiesce to these tacit rules and retain a personal faith while accepting a thoroughly naturalistic picture of physical reality"

This quote by Phillip E. Johnson is referring to theists who accept evolutionary science and its naturalistic view of physical reality, while still keeping their personal faith. Johnson is recommending that these theists want to accept the rules of evolutionary science, despite the fact that they may not agree with them. This could be viewed as a compromise between faith and science, as the theists are able to keep their faith while still accepting the clinical proof. This quote is an example of how theists can reconcile their faith with clinical evidence, and shows that it is possible to accept both. It likewise suggests that theists can be open-minded and willing to accept scientific proof, even if it does not align with their beliefs.