Saint Patrick is the patron saint and national apostle of Ireland. St Patrick is credited with bringing christianity to Ireland. Most of what is known about him comes from his two works; the Confessio, a spiritual autobiography, and his Epistola, a denunciation of British mistreatment of Irish christians. Saint Patrick described himself as a "most humble-minded man, pouring forth a continuous paean of thanks to his Maker for having chosen him as the instrument whereby multitudes who had worshipped idols and unclean things had become the people of God."