The Uniqueness of Jesus' Claims ("Lord, Liar, or Lunatic") #9

A popular modern move is to admire Jesus as a great moral teacher while setting aside his more radical claims about himself. C.S. Lewis’s famous “trilemma” argument, developed in Mere Christianity, contends this middle position is unstable: a man who claimed what Jesus claimed about himself was either telling the truth, or he was a liar who knew it was false, or he was sincerely deluded — but “a great moral teacher” is not among the live options once those claims are taken seriously.

The Argument

The claims in question are substantial. Jesus applied the divine name to himself — “before Abraham was, I am” (John 8:58), echoing God’s self-designation to Moses — and provoked an attempted stoning for blasphemy. He said “I and the Father are one” (John 10:30). He claimed authority to forgive sins, which the religious leaders present immediately recognized as a claim only God could rightfully make (Mark 2:5-7). He claimed to be humanity’s exclusive way to God: “no one comes to the Father except through me” (John 14:6). Lewis’s point is that a merely human teacher making these claims falsely, and knowing it, would be a liar of a uniquely self-destructive kind; making them falsely while sincerely believing them would put him in the category of a man who thought he was a poached egg — not a great moral teacher.

Common Objections

The trilemma’s weakest point, widely acknowledged even by sympathetic scholars, is that it assumes the Gospel of John records Jesus’s own words with precision, when many critical scholars regard John’s high Christology as a later theological development rather than the verbatim words of the historical Jesus — which would open a fourth option Lewis didn’t fully address: legend, that the church attributed these claims to Jesus after the fact. Defenders respond that similarly exalted claims and functions (forgiving sin, authority over the Sabbath, receiving worship) also appear in Mark, widely regarded as the earliest gospel, suggesting the high view of Jesus is not a late invention. The trilemma remains a rhetorically powerful argument rather than a strict logical proof, and works best alongside, not instead of, the historical case for the resurrection.