Abstract : The texts in communication science often make allusions to religious problems, but only allusions. Nevertheless, our first inventory of religious quotations in several texts is surprising : it is well-stocked, more than we imagined initially. Sometimes, authors content themselves by doing a single comment, but frequently the religious quotation is used to organize the thought : communication is words, conviction, a medium has rituals, a journalist uses myths. Researchers in communication would better analyse systematically religious facts. Nowadays, religion is only tacit, implicit or handled.