Theology and the life sciences are mutually dependent on one another in the task of understanding the origin and function of moral behavior. The life sciences investigate morality from the perspective of the historical and communal dimension of humanity and point to survival as the primary function of human behavior. A Christian ethic of self‐sacrifice advances the preservation of the entire human and nonhuman creation and should not, therefore, be objected to by the life sciences. Religion, however, is more than (...) a survival mechanism. It points to a preserving agency beyond humanity and prevents the life sciences from reducing life to its strictly biological side. (shrink)