Today, sin lies with those who do not listen to God's word. Many people don't care at all about God's existence. Older people are solutions: the ability to analyze is passed on. There is a particular role for older people in the relationship with their generation, which is not based on previous things and will tend to get lost. Catechesis on community and successive generations, in collaboration with Fr. Rakotondramanana Soloniaina J. Emilien.