"Rather, like the church of Rome their ["Religious leaders of today"] influence is exerted to restrain investigation within the sectarian limits. With the implied threat of disfellowship, they urge their ministers and students not to search continually for truth, but to accept the voice of their sect as infallible." Watchtower 1887 Apr p.923
"The great adversary is wily, and at all times is quick to appeal to passion. He persuades some that they must take a radical stand against some secular work or activity, and to proceed at once to disfellowship others who cannot conscientiously take this same stand. Somehow they seem to think that their radical stand entitles them in a very special sense to divine favour and blessing. his attitude leads them to violate principle in various ways: (1) By judging and condemning others who do not see as they do; (2) By refusing to fellowship those who still believe in the ransom, the restitution, the high calling." Watchtower 1919 Feb 1 p.6385
"Satan's organization sails under the high-sounding name of "Christendom". It boasts of a membership of over 500,000,000 persons. Its members are in bondage to creeds, customs, rites and ceremonies; they dare not disown these or criticize or expose them. To do so would bring down on their heads taunts, reproaches, disfellowship and persecution. Many thousands of the Lords people are held in these denominations as prisoners, afraid to express their disapproval of the creeds, methods and customs of the organization. Watchtower 1930 Oct 1 p.301