Christian Catechism of the Orthodox Catholic Eastern Greco-Russian Church

The "Christian Catechism of the Orthodox Catholic Eastern Greco-Russian Church" is a significant work by Philaret, a prominent Russian Orthodox theologian and metropolitan of Moscow in the 19th century. First published in 1823, this catechism aimed to instruct adherents in Orthodox Christian doctrine. It covers key theological areas, including the Nicene Creed, the theology of prayer, and the Mosaic Law.1

The work underwent revisions to address perceived Lutheran influences, but after 1839, it became highly influential in 19th-century Russian theology. Catechisms, in general, are manuals of religious instruction, often in a question-and-answer format, used to teach the young, convert others, and affirm faith. While the practice of oral instruction existed earlier, written catechisms became more prominent after the Protestant Reformation in the 16th century.12