What idea have Christians been hammered with about letting people do what they want?
The recurring assumption is that a Christian must simply allow others to do to him whatever they want, and that he has no standing to argue because he is a Christian. Romans 12:18, however, is called a loophole against that very assumption.
Les explains that this is a widespread idea Christians have been hammered with: if you are a Christian, you just have to let people do to you what they want, and you are in no position to argue because you are a Christian. He says Romans 12:18 is a loophole. In the surrounding context, he contrasts this with the Christian principle of honest dealings—not doing dirt in return, not taking advantage of others, and being a square dealer, even preferring to charge too little rather than overcharge.
If it be possible, as much as lieth in you, live peaceably with all men.
More Questions
What does Les say about Romans 12:18 and the idea that Christians must let people do whatever they want?
Les says Romans 12:18 is a loophole to the commonly taught idea that Christians must let people do whatever they want to them and are in no position to argue.