In the Old Testament, the word "Lord God of Abraham, Isaac and Israel" is used only three times, including the word "Israel". Advice when we practice the Holy Eucharist that we practice the method and sacrifice of Elijah 1 Kings 18, 20,-39. "Answer me, Lord, answer me". Elijah was a famous person in the way of prayer, against injustice. Prayer sends us out to serve those around us. Catechesis on the prayer of Elijah, in collaboration with Fr Ramamonjisoa Herizo Élie.