Supererogation: Moral *actions that go beyond what is required by duty, especially those actions that are commendable and indicative of superior *character. Some Protestants have been critical of the idea of supererogation on the grounds that humans never fully realize their moral duties, much less exceed them. But there is a clear sense in which certain actions—for example, deciding to donate a kidney to a stranger—go beyond what is required by duty and seem to express a high degree of moral character. See also ethics; morality.[1]

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[1] Evans, C. Stephen (2010-04-28). Pocket Dictionary of Apologetics & Philosophy of Religion (Kindle Locations 1688-1691). Intervarsity Press. Kindle Edition.