In the communities' Rule of Life, Delfieux answers the question: Why Jerusalem? "Because Jerusalem is the city given by God to men and built by men for God, thereby becoming the foremost of the cities of the world, and because your vocation is to be a city-dweller, you are a monk, a nun of Jerusalem. (§161) Be vigilant to keep in your heart a true concern for communion with all the sons of Abraham, Jews and Muslims, who are like you worshippers of the one God and for whom Jerusalem is equally a holy City." (§174)
KTO, the French Catholic television service, presents video of daily services from the Jerusalem community in Paris (Monday to Friday, except in August).