Oath Against Modernism

Catholic oath, 1910–1967

The Oath Against Modernism was instituted by Pope Pius X in his motu proprio Sacrorum antistitum on September 1, 1910. The oath was required of "all clergy, pastors, confessors, preachers, religious superiors, and professors in philosophical-theological seminaries" of the Catholic Church. It remained in force until the Congregation for the Doctrine of the Faith, with the approval of Paul VI, replaced it with a revised Profession of Faith on July 17, 1967.

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