The modern critique of religion comes from Freud, Marx, and Nietzsche. Freud claimed that religion is psychological self-justification, that we created God to assuage our guilt and fear. Marx claimed that religion is a sociological self-justification, that we created God to exclude those unlike us. Nietzsche said that religion is nothing but a power trip, an attempt to use God to accrue power over others. However, Jesus himself critiqued religion and turned it on its head.