He liberally extended his charities, according to the custom of his predecessors, to remote churches, particularly to that of Corinth, to which he addressed an excellent letter, as St. Dionysius of Corinth testifies in his letter of thanks, who adds that his letter was found worthy to be read for their edification on Sundays at their assemblies to celebrate the divine mysteries, together with the letter of St. Clement, pope. St. Soter vigorously opposed the heresy of Montanus, and governed the Church to the year 177.
Feast Day of Saint Soter
The Feast Day of Saint Soter is April 22. The origin of Feast Days: most saints have specially designated feast days and are associated with a specific day of the year and these are referred to as the saint's feast day. The feast days first arose from the very early Christian custom of the annual commemoration of martyrs on the dates of their deaths at the same time celebrating their birth into heaven.