Bishop of Vyborg On 3 May 1887, Anthony was consecrated as the Bishop of Vyborg, serving as a vicar of the . He was also appointed as the rector of the Saint Petersburg Theological Academy. During his tenure, he played a significant role in enhancing the level of theological education at the academy and encouraged students to engage in practical church work, including pastoral and educational activities in Saint Petersburg parishes.'''' He established a student circle that conducted theological and moral meetings in prisons, shelters, and parishes. Additionally, he supported the creation of a Byzantine studies department at the academy and sought to increase the number of monks educated in theology. Anthony continued to support the Kazan Theological Academy by donating 287 books in 1891 and contributing 5,000 rubles in 1899 for student scholarships.
Bishop of Finland and Vyborg In 1892, Bishop Anthony was transferred to the . Around this time, he was officially introduced to Empress
Maria Feodorovna, who became his patroness.'
In the Grand Duchy of Finland, Anthony focused on developing the missionary activities of the Russian Orthodox Church while striving to avoid associating the faith solely with the Russification efforts in the region.' He established 14 new parishes, facilitated the construction of 10 churches, and initiated Orthodox publications in both Finnish and Russian. Additionally, he founded the country’s first female monastery, began translating liturgical texts from
Church Slavonic to Finnish, opened more parish schools, and engaged in various charitable activities. His efforts played a significant role in the future establishment of the
Orthodox Church of Finland.'''' In 1893, he organized a congress of Finnish Orthodox clergy in
Serdobol and frequently visited the parishes under his jurisdiction. In 1892, he also published a volume of his works on homiletics and church history in Saint Petersburg, titled
On the History of Christian Preaching. He was awarded a Doctor of Theology degree in 1895.'
In 1893, he became the head of a commission for dialogue with Old Catholics,' a position he held for five years. The commission aimed to facilitate the potential entry of some Old Catholics into the Orthodox Church. Bishop Anthony, valuing dialogue, advocated for the acceptance of the teachings of the Russian Orthodox Church by Old Catholics, particularly in
ecclesiology, where theological differences were most pronounced, and the abandonment of the
Filioque clause in the creed. In 1897, as a leading hierarch of the Russian Orthodox Church, he made an official visit to the
United Kingdom to participate in the celebrations marking the 60th anniversary of
Queen Victoria's reign. During this visit, he engaged in dialogue with
Anglicans and received honorary doctorates from the universities of
Oxford and
Cambridge.'
He also traveled to Germany to meet with Old Catholic theologians. Upon returning to Russia, on 24 December 1898, he was appointed Metropolitan of Saint Petersburg, the highest-ranking hierarch in the Russian Orthodox Church, succeeding the late Palladius Rayev.' == Metropolitan of Saint Petersburg ==