The Marcan narrative of the “healing of Simon's mother-in-law” serves as a foundation to analyze other views that occur in the houses indicated throughout the second gospel, and to read in the key of synodality where it is seen that koinonia is the proper environment. to prepare and to live the diakonia, based on community and missionary renewal. This research seeks to point out the relationships between the five services around Simón's house and ecclesial synodality, based on the narrative analysis of Mc 1,29-31, which leads to using elements of narrative analysis from the categories of synodality: communion, participation and mission. After completing the narrative path of the “Marcan houses”, conclusions are reached about the importance of reviewing community dynamisms, to generate a new relationship with Jesus in order to renew the vocation and mission (cf. Mc 16, 7) making fraternity project itself as a response to humanity with a new, fresh, liberating Word and with the great testimony of ecclesial fraternity and sorority.