How does faith-based social involvement within a cultural diverse society express itself? Is the focus pure social outreach, that is, the rendering of services, or should the focus include meaningful interaction between the so called 'outreacher' and those being supported by the outreach? This article looks at the relationship between koinonia and diaconia in the creation of an intercultural space where individuals from different contexts are welcomed and supported in a mutual way. Through an interdisciplinary approach this article reflects on (...) the experience of koinonia and diaconia in the mission of the church by bringing it into an interdisciplinary conversation with Sociology. God's reign become visible if koinonia and diaconia can dance together! (shrink)