Invicti Athletae §10

¹⁰ But afterwards, when he was raised to the dignity of the priesthood - in the same year and on the same day that Ignatius and Francis Xavier were inscribed at Rome in the calendar of the Saints - he chose before all else to spare no labor, in ministerial journeys and by sermons on holy things, in order that he might spread everywhere a Catholic faith which would not be ineffective, but productive of good works.