During most of my years as a liberal Protestant minister, I never saw a contradiction between my Christian faith and the fact of evolution. Like many progressive Christians, I did not understand evolution as a challenge to the doctrine of divine creation ex nihilo; evolution was merely the mechanism that God used for creating life on our planet.

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My indifference towards evolution changed dramatically when I ran across Richard Dawkins’ analogy of natural selection as “climbing Mount Improbable.” In that memorable and vivid metaphor, Dawkins illustrates the truly incremental and gradual nature of the evolutionary process. Opponents of evolution have contended that, while change within species can occur, the leap from one species to a new species is just too improbably great to have happened by purely natural processes. Outside assistance must have been involved. Dawkins addresses that claim by acknowledging that, yes, the leap from one species to the next seems improbably difficult—like scaling the cliff of a mountain to reach the peak. However, if one approaches the peak not from the formidable cliff but instead moves slowly along the slope on the other side of the mountain, reaching the peak of “Mount Improbable” becomes quite possible, although it might take a very long time.

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Which core doctrines of Christianity does evolution challenge? Well, basically all of them. The doctrine of original sin is a prime example. If my rudimentary grasp of the science is accurate, then Darwin’s theory tells us that because new species only emerge extremely gradually, there really is no “first” prototype or model of any species at all—no “first” dog or “first” giraffe and certainly no “first” homo sapiens created instantaneously. The transition from predecessor hominid species was almost imperceptible. So, if there was no “first” human, there was clearly no original couple through whom the contagion of “sin” could be transmitted to the entire human race. The history of our species does not contain a “fall” into sin from a mythical, pristine sinless paradise that never existed.

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