The Rock of Faith (Russian: Камень веры) also translated as The Stone of Faith, is a major anti-Protestant treatise written by Russian Orthodox Archbishop Stefan Yavorsky in 1713–1715.^[1] Its full title The Stone of faith: for the sons of the holy Orthodox Church — for affirmation and spiritual creation; for those who stumble over a block of stumbling and temptation — for getting up and correcting, Church Slavonic: Камєнь вѣры: православнымъ цєрквы святыѧ сыномъ на утвєрждєнїє и духовноє созиданїє. Прєтыкающымсѧ жє ω камєнь прєтыканїѧ и соблазна. На востанїє и исправленїє. Later it was also published under the title, The Stone of Faith of the Orthodox Catholic Eastern Church Russian: Камень веры православно-кафолическия восточныя Церкви...^[1]

Tsar Peter the Great (r. 1682–1725) forbade its publication, as during this time period Russia needed to attract Western Europeans, including a significant number of Protestants, and such work would be detrimental to this. It was later published in 1728 under Peter II.^[2]

An anonymous pamphlet that has eventually become known in historical works under the title, "Hammer on the Rock of Faith" (Russian: Молоток на „Камень веры“, romanized: Molotok na „Kamen very“), a rebuttal of Yavorsky's treatise, appeared between 1732 and 1734.^[3]

The Rock of Faith consists of twelve chapters that cover the following issues: icons; the cross; relics; Holy Communion; prayers to the saints; prayers for the departed; holy tradition; liturgy; fasting; good works; and punishment of heretics.^[1]