The analysis of the religious values of the society and the social elements that these values take over constitute the subjects of sociology in general and sociology of religion in particular. Christianity and Islam, which is among the religions claiming to be universal, have a significant impact on social life and the elements surrounding it. This research is based on intimation-Irsad and missionary which are among the basic teachings of the religions in question. In this context, first of all, the concept of intimation and Irsad was defined and its place in Islamic doctrine was determined. Although it differs in terms of theory and practice with the notion of intimation in Islam, the Christian missionary understanding and the fact that Mission Science / Missiology, which is the scientific field of this understanding, constitute a concrete example, made this study a subject of research.