Lewis's trilemma

Lewis's trilemma is an apologetic argument traditionally used to argue for the divinity of Jesus by postulating that the only alternatives were that he was evil or mad. One version was popularised by University of Oxford literary scholar and writer C. S. Lewis in a BBC radio talk and in his writings. It is sometimes described as the "Lunatic, Liar, or Lord", or "Mad, Bad, or God" argument. It takes the form of a trilemma — a choice among three options, each of which is in some way difficult to accept.

This argument is very popular with Christian apologists, but the argument relies on the assumption that Jesus claimed to be God, something that most unbiblical scholars do not believe to be true.