Hi chaupil,
I'm quite familiar with the Christadelphian movement. I've been debating theology with them for about 2 years. I will provide a link which (in my personal opinion) summarizes the CA's well.
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www.ondoctrine.com]
"The Christadelphian belief system was founded by John Thomas about the year 1848. He was an English physician who immigrated from England to the United States. Originally a Congregationalist, he joined the Campbellite movement in the United States, known as the "Disciples of Christ," and soon broke away from their ranks when he was accused of holding to strange doctrines.
Sometime between 1834 and 1848, Thomas began his church, or group. During that period he started producing in 1834 the publication "The Apostolic Advocate" and in 1842 the publication "The Investigator" and in 1847 the publication "The Herald Of The Future Age."
The original name of his group was "The Royal Believers In New York." It was not until the era of the American Civil War that it became necessary to give the group a proper name in order that they be recognized as a religious institution so that members could refuse military service. It was at that time the name Christadelphians was coined by John Thomas, meaning Brethren of Christ.
Christadelphians claim that the Bible is inerrant and the source of their truth, yet the doctrinal positions that they adopt differ radically from what the Bible actually says. This is the same difficulty faced by Mormonism, Jehovah's Witnesses, Seventh-day Adventism and Christian Science. All of the organizations came into existence because of the personal beliefs developed by their founders. The system of beliefs developed by the founders and subsequent leaders, were then placed over the Bible, and then it was claimed that the Bible supported the predefined belief system. Ways were then found to "interpret" Scripture so that it said what the predefined beliefs asserted, rather than having doctrinal belief conform to Bible teaching.
Like many religious leaders who originate their own systems of belief, John Thomas was a self-proclaimed authority on what he said was the truth of the Bible. He began by stating that his beliefs were the only true beliefs and that the Christian church was then an apostate church, having abandoned the truth of the true gospel, as he defined it, sometime around the 4th century. As a result, those pastors, teachers and writers that represented orthodox Christian belief were all deceived, deceivers themselves and their words and beliefs were all lies. With a single statement, John Thomas dismissed as deceivers the greatest minds in Christian history: great Reformation leaders such as Theodore Beza, John Calvin and Martin Luther, also such Puritan divines such as Thomas Boston, Jonathan Edwards, Thomas Manton and John Owen, also others such as the Baptist John Gill and the Methodist evangelist George Whitefield. Such a fortunate circumstance occurred with the coming of John Thomas, in that he was able, after 1400 years without the "truth", to rediscover the "true" gospel of Jesus Christ so that he and his followers could escape from the apostate religious system and find the "truth" as John Thomas defined it. The question must be posed as to why the people in the previous 1400 "apostate" years were not nearly as discerning or dedicated to finding the truth as John Thomas. It must also be claimed that Jesus Christ was also remiss in not being able to prevent His church from becoming apostate, which directly contradicts the Scripture:
"I also say to that you are Peter, and upon this rock I will build My church; and the gates of Hades will not overpower it."
Matthew 16:18 (NAS)
This same sequence of events is seen in the Mormon church, when Joseph Smith also claimed that the church went into apostasy in the 2nd or 3rd century and all then current churches were in error and also apostate. He claimed that God revealed to him that he should not join any existing church. After 1,500 years of apostasy, he had discovered the truth through the revelation of the golden plates which an angel revealed to him. Jesus Christ was not able to keep the gospel message revealed to humanity during those 1,500 years, but again it was a fortunate circumstance that Joseph Smith came along just in time to receive the revelation for himself and his followers. Apparently Jesus Christ was also remiss in the Mormon belief system also, because he was again not able to prevent His church from becoming apostate, which directly contradicts the Scripture (Matthew 16:18).
Religious leaders, like John Thomas, are not content to become pastors and teachers, subjecting themselves to Biblical authority. They wish to establish themselves in a ruling position, by which they exert authority over their adherents and also determine the content and meaning of all doctrines that they teach. For the most part, these leaders realize that they are unable to establish a new religion of their own creation, since most people would ignore that approach, leaving those leaders with very small congregations, existing in obscurity. Using that approach, the goal of the leader, to exalt themselves, would not be accomplished. In order to give themselves a head start and an existing base of support, so that they can promote their agenda, those leaders establish themselves in positions relative to existing orthodox belief, giving the impression that they are true believers. It is at that point that the outrageous claims are then made, claiming that what beliefs are currently established in the Christian church are, in fact, heretical beliefs as a result of some supposed apostasy in the past. They then claim that orthodox beliefs are not taught in the Bible, but are the "doctrines of men" which are established in place of the true doctrines of Jesus Christ and the apostles. These leaders claim that written statements of belief embodied in creeds, catechisms, writings and sermons of orthodox preachers, pastors and teachers are doctrines of man and are in error, or are doctrines of the devil. Many times they attempt to identify those doctrines as having been passed on by the Catholic church, since anti-Catholic sentiment is used to brace their claims". .........................................
Colter