The beliefs of Jehovah's Witnesses are based on the Bible teachings of Charles Taze Russell—founder of the Bible Student movement—and successive presidents of the Watch Tower Society, Joseph Franklin Rutherford and Nathan Homer Knorr. Since 1976 all doctrinal decisions have been made by the Governing Body of Jehovah's Witnesses, a group of elders at the group's Brooklyn headquarters. These teachings are disseminated through The Watchtower magazine and other publications of Jehovah's Witnesses, and at conventions and congregation meetings.
Jehovah's Witnesses teach that the present world order, which they perceive as being under the control of Satan, will be destroyed by a direct intervention of Jehovah (God), who will use Jesus Christ to fully establish his heavenly government over earth, destroying existing human governments and non-Witnesses, and creating a cleansed society of true worshippers. They see their mission as primarily evangelical (disseminating "good news"), to warn as many people as possible in the remaining time before Armageddon. All members of the denomination are expected to take an active part in preaching. Witnesses refer to all their beliefs collectively as "the Truth".
Doctrines of Jehovah's Witnesses are established by their Governing Body. Until late 2012, the Governing Body described itself as the representative and "spokesman" for God's "faithful and discreet slave class" (the approximately 10,000 "anointed" Jehovah's Witnesses), which Witnesses were taught Christ used as a channel for God's progressive revelations and to direct Christians on biblical matters. The Governing Body seeks neither advice nor approval from any "anointed" Witnesses other than high-ranking members at the Brooklyn headquarters. At the 2012 Annual Meeting of the Watch Tower Society, the "faithful and discreet slave" was defined as referring to the Governing Body only.