Evolutionary theory is frequently offered as an explanation not just for the development of species but for the development of morality. If our moral intuitions evolved for survival, they have no transcendent authority — they are just useful instincts dressed up as principles. Scripture’s response to this argument is worth understanding clearly.
The Mistaken Assumption
If morality evolved, it has no authority beyond evolutionary utility. What we call good is whatever helped our ancestors survive and reproduce. There is no transcendent standard — only adaptive preference. And there is no real answer to the question of why anyone should be moral when being immoral would be more advantageous.
What Scripture Actually Shows
Scripture does not deny that human beings have moral intuitions — it explains them differently. Romans 2:14-15 describes the law written on human hearts. But more importantly, Scripture addresses the question that evolutionary morality cannot: why should you be moral when it costs you? If morality is evolutionary, the honest answer is that you should not be moral when being selfish is more advantageous. Scripture grounds moral obligation in the character of God, not in evolutionary utility.
Why This Feels Hard
The evolutionary account of morality is compelling in explaining where moral intuitions come from descriptively. It fails when asked to prescribe why those intuitions should be binding. The is does not produce the ought, and evolutionary biology is not exempt from that problem.
What Faith Looks Like Here
Engaging the evolutionary account of morality honestly means distinguishing between the descriptive claim — that moral intuitions appear in evolved creatures — and the prescriptive claim — that those intuitions carry genuine moral authority. Scripture provides the grounding for the second that evolution alone cannot supply.