During the greater part of 1923, at the first of each month, as a stimulus to united efforts to advertise the Kingdom, half of the Wednesday-night Prayer, Praise and Testimony Meeting was set aside for testimonies regarding the field service.

At least by 1926, monthly meetings where field service was discussed were called Workers’ Meetings. Those who actually participated in such service were usually the ones that attended. At these meetings, methods being used to witness to others were discussed, and plans for future activity were made. By 1928 the Society was urging the congregations to have such meetings each week. In another four years, congregations were beginning to replace the Testimony (or, Declaration) Meeting with what had come to be called the Service Meeting, and the Society encouraged everyone to attend. For over 60 years, this weekly meeting has been held by the congregations. By means of discourses, discussions involving audience participation, demonstrations, and interviews, specific help is provided in connection with all aspects of the Christian ministry.

As for training in public speaking, in the early years this was not done at the regular congregation meetings. However, at least by 1916, it was suggested that those who felt that they had some potential as public speakers might hold classes by themselves, with perhaps an elder present as a moderator to hear them and to offer counsel for improvement in content and delivery of their talks. These gatherings, attended only by males in the congregation, later came to be known as Schools of the Prophets. When reviewing the events of those days, Grant Suiter recalled: “The constructive criticism that I got at the school was nothing compared with that which I received from my father personally after he had attended one of the sessions to hear me try to make a speech.” To help those who were trying to make progress, brothers privately compiled and printed a textbook of instructions on speaking, along with outlines for a variety of discourses. In time, however, these Schools of the Prophets were discontinued.