Since his medium for bringing change was print and debate, it was natural for the origins of the Christadelphian body to be associated with books and journals, such as Thomas's Herald of the Kingdom.
In his desire to seek to establish Biblical truth and test orthodox Christian beliefs through independent scriptural study he was not alone.
In church matters, Roberts was prominent in the period following the death of John Thomas in 1871, and helped craft the structures of the Christadelphian body.
In the Second World War, this frequently required the person seeking exemption to undertake civilian work under the direction of the authorities.
During the Second World War, the Christadelphians in Britain assisted in the Kindertransport, helping to relocate several hundred Jewish children away from Nazi persecution by founding a hostel, Elpis Lodge, for that purpose.
They teach that he was part of God's plans from the beginning and was foreshadowed in the Old Testament, but was no independent creature prior to his earthly birth.
[39][40][35] Christadelphians believe that Jesus Christ will return to the Earth in person to set up the Kingdom of God in fulfilment of the promises made to Abraham and David.
[49] Old Paths Christadelphians continue to believe that the Kingdom of God is to be restored to the land of Israel promised to Abraham and ruled over in the past by David, with a worldwide empire.
According to Christadelphians, these terms are used in reference to specific political systems or individuals in opposition or conflict and not to an independent spiritual being or fallen angel.
[51] Christadelphians believe that people are separated from God because of their sins but that humankind can be reconciled to him by becoming disciples of Jesus Christ.
[55] Following the judgement at that time, the accepted receive the gift of immortality, and live with Christ on a restored Earth, assisting him to establish the Kingdom of God and to rule over the mortal population for a thousand years (the Millennium).
[60] With no central authority, individual congregations are responsible for maintaining orthodoxy in belief and practice, and the statement of faith is seen by many as useful to this end.
Congregational discipline and conflict resolution are applied using various forms of consultation, mediation, and discussion, with disfellowship (similar to excommunication) being the final response to those with unorthodox practices or beliefs.
Male members (and increasingly female in some places) are assessed by the congregation for their eligibility to teach and perform other duties, which are usually assigned on a rotation basis, as opposed to having a permanently appointed preacher.
[75] Figures from Christadelphian mission organisations are as follows: Africa (32,500),[76] Asia (4,000),[77] the Caribbean (400),[78] Europe (including Russia) (700),[79] Latin America (275),[78] and the Pacific (200).
The Berean Fellowship was formed in 1923 as a result of varying views on military service in England, and on the atonement in North America.
[87] There are now thought to be around 800 members in England, Australia, Canada, India, Jamaica, Poland, the Philippines, Russia and Kenya.
Ecclesias forming the Old Paths Fellowship arose in England, Australia, New Zealand and Canada numbering around 500 members in total.
[92] According to Bryan Wilson, functionally the definition of a "fellowship" within Christadelphian history has been mutual or unilateral exclusion of groupings of ecclesias from the breaking of bread.
Despite their differences, the Central, Old Paths, Dawn[95] and Berean[96] fellowships generally subscribe to the Birmingham Amended Statement of Faith (BASF), though the latter two have additional clauses or supporting documents to explain their position.
While some communities of Christadelphian origin have viewed previous statements of faith as set in stone, others have felt it necessary to revise them in order to meet contemporary issues, update language or add supporting Biblical quotations.
[102] Numbering around 400 (primarily Ohio and Florida, USA),[103] they are welcomed into fellowship by some "Central" Christadelphians and are currently involved in unity talks.
[111] Although noting in the introduction to 'The Protestors' that 'Some recorded herein perhaps did not have "all the truth" — so the writer has been reminded',[111] Eyre nevertheless claimed that the purpose of the work was to 'tell how a number of little-known individuals, groups and religious communities strove to preserve or revive the original Christianity of apostolic times',[112] and that 'In faith and outlook they were far closer to the early springing shoots of first-century Christianity and the penetrating spiritual challenge of Jesus himself than much that has passed for the religion of the Nazarene in the last nineteen centuries'.
[120] Also, recent discoveries and research have shown a large similarity between Christadelphian beliefs and those held by Isaac Newton who, among other things, rejected the doctrines of the trinity, immortal souls, a personal devil and literal demons.
Christadelphians are organised into local congregations, that commonly call themselves ecclesias,[155] which is taken from usage in the New Testament[156] and is Greek for gathering of those summoned.
[164] Women are typically not eligible to teach in formal gatherings of the ecclesia when male believers are present, are expected to cover their heads (using hat or scarf, etc.)
Generally, at formal ecclesial and inter-ecclesial meetings the women wear head coverings when there are acts of worship and prayer.
Ecclesias in an area may regularly hold joint activities combining youth groups, fellowship, preaching, and Bible study.
[170] The next was the hymn book published for the use of Baptised Believers in the Kingdom of God (an early name for Christadelphians)[10] by George Dowie in Edinburgh in 1864.
In the English-speaking world, worship is typically accompanied by organ or piano, though in recent years a few ecclesias have promoted the use of other instruments (e.g. strings, wind and brass as mentioned in the Psalms).