Zwinglian
In 1769 Lavater took Holy Orders in Zurich's Zwinglian Church, and officiated until his death as deacon or pastor in churches in his native city. His oratorical fervor and genuine depth of conviction gave him great personal influence; he was extensively consulted as a casuist, and was welcomed with enthusiasm on his journeys throughout Germany. His writings on mysticism were widely popular as well.
In the same year (1769), Lavater tried to convert Moses Mendelssohn to Christianity, by sending him a translation of Charles Bonnet's Palingénésie philosophique, and demanding that he either publicly refute Bonnet's arguments or convert. Mendelssohn refused to do either, and many prominent intellectuals took Mendelssohn's side, including Lichtenberg and Herder.
Read more about this topic: Johann Kaspar Lavater