The Archbishop of Lyon, cardinal Philippe Barbarin, and representants of the Muslim, Jewish, Protestant, Orthodox and Armenian cults signed a text that asserts the sustainable nature of the marriage: “it is important to have clear ideas about this key-point of reference for humanity. Experiences show that we pay the price for the destruction of nature. We don’t have to destroy humanity anymore, which is at the heart of the creation”. ‘ As for adoption, signatories denouce the lie that remains in the assertment that “it is indifferent for a child to grow up with or without a father or a mother”. ‘ ‘ This document constitutes the first interreligious declaration on this matter.