All truth passes through three stages. First, it is ridiculed. Second, it is violently opposed. Third, it is accepted as being self-evident. (Arthur Schopenhauer 1788 - 1860)
The truth that makes men free is for the most part the truth which men prefer not to hear. (Herbert Agar)
Protestant ministers were not universally called Pastors until the 18th century under the the influence of Lutheran Pietists
The term "Clergy" first appears in Tertullian (160-225). Not until the third century, were Christian leaders universally called "clergy."