 Other members in the society are traditional diocesan priests--- clergy who remain under the jurisdiction of their diocesan bishop.Technically speaking, such diocesan priests have not "joined" Opus Dei membership, although they have joined a society that is closely affiliated with Opus Dei.The Cooperators of Opus Dei are those who, though not considered members by Opus Dei, collaborate in some way with Opus Dei—usually through praying, charitable contributions, or by providing some other assistance.