Work in Paris Barré was sent to
Paris in 1643 to pursue his theological studies in preparation for
Holy Orders. While he was still a
deacon, he was asked to teach philosophy at the monastery on the Place Royale (now
Place des Vosges). After his ordination to the priesthood in 1645, he assumed the office of professor of theology and librarian for the monastery's renowned library. In 1655, Barré became ill and was sent to the monastery in Amiens. There, he was appointed to work as the
sacristan of the house. The calming influence of this office brought about a quick recovery.
Work in Rouen In 1659, Barré was sent to
Rouen, where he carried out his apostolate mainly with the local members of the Minim
Third Order. He became widely known as a preacher and his sermons attracted a large audience. As a result of his efforts to promote a planned
parish mission in the nearby village of
Sotteville-lès-Rouen, Barré came to see the suffering of the local population. He had long been concerned about those "far from God" and socially disadvantaged. He saw the need to make basic education more accessible to all. There were hardly any schools for girls and very few for boys. Most primary school teachers were poorly educated and religious education was almost non-existent. While he was in Rouen, Barré was consulted by St.
John Baptist de la Salle, who founded the
Institute of the Brothers of the Christian Schools to educate boys. ==Congregation of the Sisters of the Infant Jesus==