He was finally ordained priest, and said his first Mass with the intense faith and ardour of the soul which, throughout his whole life, he brought to those holy Mysteries. Meanwhile, burning with zeal for the salvation of souls, he devoted himself wholly to their service. He undertook the direction of the Sisters of the Infant Jesus, founded for the education of girls; and not only managed them most prudently, but saved their institute from dissolution. From this time onwards, he turned his attention to the education of poor boys in religion and good morals. And God had raised him up for this very end, namely, that he should found in his Church a new family of religious men, and should look after boys' schools, especially of poor boys, with unceasing and efficient care. And, indeed, this duty, entrusted to him by Divine providence, was successfully accomplished, in spite of very much opposition and great hardships, by the foundation of an institute of brothers which he named the Christian Schools.
His male associates in this great and arduous work he at first received into his own house; and then, establishing them in a more suitable dwelling, thoroughly inspired them with his method and with those wise laws and regulations which were afterwards confirmed by Benedict XIII. Because of humility and love of poverty, he first resigned his canonry and distributed all his property among the poor; and later also, after many unsuccessful attempts to do so, he of his own will resigned the government of the institute which he had founded. But meanwhile his solicitude for the brothers and for the schools which he opened in different places did not lessen, though he began to give himself more diligently to God. Shewing his hatred for self in constant fastings, in the use of the discipline and in other austerities, he spent his nights in prayer. At length, conspicuous for every kind of virtue, especially obedience, and zeal for fulfilling the divine will, and love and devotion to the Apostolic See, full of merit, and having devoutly received the sacraments, he fell asleep in the Lord in the sixty-eighth year of his age. The Supreme Pontiff Leo XIII placed him in the list of the Blessed; and, illustrious by new miracles, he was adorned with honours of the Saints in the year of jubilee, 1900. Pius XII appointed him the special heavenly patron of all teachers of boys and young men.