A Time to Keep: Theology, Mortality, and the Shape of a Human Life - Hardcoverby Ephraim Radner (Author) The miracle of birth and the mystery of death mark human life. Mortality, like a dark specter, looms over all that lies in between. Human character, behavior, aims, and community are all inescapably shaped by this certainty of human ends. Mortality, like an unwanted guest, intrudes, becoming a burden and a constant struggle. Mortality, like a thief who steals, even threatens the ability to live life rightly. Life is short.