This catechism can be considered as a valid and effective catechetical tool for the work of the evangelization, a work which has to be realized with a new missionary zeal towards those who don't know the Catholic faith and as well towards those who know it defectively and insufficiently. May those who will read this catechism and those who will use it in the noble and meritorious work of teaching Christian doctrine, may be equipped with the sure and sacred doctrine of the Catholic faith, in order to stand, having their loins girt about with truth. -Bishop Athanasius Schneider This is the first English translation of St. Robert Bellarmine's Long Catechism, which follows a traditional question and answer model but gives deep meditations on the truths of faith. It was written for students with some education as well as for those who would teach Catechism. It was explicitly approved by Pope Clement VIII and praised by Pope Benedict XIV and Pius XI. St. Robert Bellarmine is a doctor of the Church.

In dit handvest zijn drie documenten of verklaringen opgenomen betreffende de geloofsleer. Een eerste document, van de hand van drie Kazachse bisschoppen, dateert van december 2017. Het tweede document is het Geloofsmanifest van Kardinaal Gerhard Muller, de voormalige Prefect van de Congregatie van de Geloofsleer, welke gepubliceerd werd in februari 2019. Het derde document, dat dateert van juni 2019, is van de hand van Kardinalen Burke en Pujats en opnieuw de drie Kazachse bisschoppen Schneider, Lenga en Peta. Mogen deze gebundelde documenten, die omgedoopt werden tot 'Handvest van de Katholieke Geloofsleer' bijdragen tot het ophelderen van vragen en het wegnemen van eventuele verwarring met betrekking tot punten van geloof of kerkelijke doctrine.