Homosexual marriage “is not a gift to make to the next generations”, urged the Christian, Jewish and Moslem leaders of Lyon in a joint statement signed in recent days. The religious representatives “are deeply concerned by the current fragility” of the family because “adults already have difficulties enough in helping the young to build their own lives. How will this generation manage to found its own family in harmony if we submit the institution of matrimony to relativism? However, many people today are posing the question whether the law can authorise the marriage of two persons of the same sex”. The statement re-affirms that “what is at issue here is not a simple social debate, but an unprecedented choice in the history of humanity. Marriage is situated beyond religious differences, and cannot be submitted to fluctuations of ideological type. It is a falsehood to pretend that for a child it is a matter of indifference whether he/she grows up with or without a father and a mother”. “The narrative of the creation is based on the difference and complementarity between man and woman. They are called to join in marriage, generate life and enable it to grow. This is the original foundation of our personal, familial and social life. Let us not forget that it is fragile”.