Still drawing on Douglas Groothuis, Christian Apologetics: A Comprehensive Case for Biblical Faith (Downers Grove: IVP and Nottingham: Apollos, 2011), 338-341: Let’s assume, for the sake of argument, that moral standards are simply a function of culture — that is, that moral “truths” are relative to particular societies. Such an assumption renders the concept of moral “progress” quite empty. Moral standards or ideals may change — e.g., with regard to slavery or the treatment of women, or... Read more