Revenge is found across all cultures, e.g., see Jared Diamond's New Yorker article "Vengeance is Ours": http://www.unl.edu/rhames/courses/war/diamond-vengeance

Revenge is found across all cultures, e.g., see Jared Diamond's New Yorker article "Vengeance is Ours": http://www.unl.edu/rhames/courses/war/diamond-vengeance.pdf http://www.unl.edu/rhames/courses/war/diamond-vengeance.pdf It has nothing to do with Christian dogma. In fact as the OP asserts, most religions/social systems attempt to control the individual's desire for vengeance.