The purpose of Jesus parables, an exegetical study of Mk 4,10-12. This research survey the purpose of the use of parables in Jesus teachings, namely, what is or which are the reasons that led Jesus to use parables in his teachings. To achieve the goals outlined, this research combined narrative analysis and rhetorical analysis methodology, considering of historical elements of the text. Thereby the exegesis reached a result, bring up another interpretation possibility of theory about Jesus teaching by parables as it apear in Mk 4, 10-12. The research conclud that in current setting there is the possibility to acknowledge that the refered section of text does not state that Jesus taught by parables with the purpose of hardering hearts of his listeners, and to rise difficulties upon him in acessing of the things of the kingdom of God. Instead this exegesis conclude that Jesus used parables in his teachings with purpose to make easy the understanding process of all his listeners, bring up to the understanding the things of the kingdom of God through a language that was familiar and natural to his listeners.