World Mission Society Church of God (WMSCOG) / Heavenly Mother Zhang Gil-jah

The World Mission Society Church of God (WMSCOG) was founded in April 1964 in Busan, South Korea by Ahn Sahng-hong, a former Seventh-day Adventist who claimed to have restored apostolic Christianity by reviving the Old Testament feasts (Passover, Pentecost, Tabernacles, Trumpets, Atonement, Unleavened Bread, Firstfruits) within a Christian framework. Ahn died in February 1985. The organisation subsequently identified him as the prophesied 'Second Coming Christ' returning under the name Ahn (per their interpretation of Revelation 22:16's reference to the 'morning star'). From 1985 onward, leadership passed to Zhang Gil-jah (born 1943), whom WMSCOG identifies as the 'Heavenly Mother' — the bride of the lamb in Revelation 21 and a living co-equal deity. The 'Father–Mother' double-deity doctrine is the central theological distinctive of WMSCOG and the basis for the organisation's branding.

Membership growth from the 1990s onward has been rapid and global. The organisation claims approximately 3 million members across 175 countries; independent estimates suggest 1–2 million is more plausible. Major centres include the Pasadena Temple in California, the New Windsor Temple in New York, and ASEZ (the youth volunteer arm) chapters on hundreds of US, European, and Asian university campuses. The organisation's distinctive evangelism strategy combines: (1) door-to-door pairs invariably described as 'sister/brother from local church' without WMSCOG identification on the first visit; (2) ASEZ volunteer-event recruitment at universities (litter cleanups, community service) that opens conversations leading to invitations to Bible study; (3) coffee-shop and gym social-network recruitment.

Litigation has been substantial. Colon v Church of God (US District Court for the Southern District of New York, 2014-2018) was filed by Michele Colon, a former WMSCOG member alleging deceptive recruitment, financial coercion, and emotional manipulation; the case was dismissed on First Amendment grounds in 2018 but the underlying complaint generated substantial documentary evidence of internal coercive practices. Kwon v Zhang Gil-jah (Seoul Western District Court, 2019) was a defamation suit by Zhang against ex-member critics that Zhang lost in part, with the court declining to enjoin academic and journalistic criticism. In 2022 a former senior WMSCOG official Kim Joo-cheol filed a wrongful-termination and abuse suit in Seoul that included allegations of Zhang's personal financial extraction from members and authoritarian governance.

Documented coercive-control patterns include: deceptive recruitment (concealing the deity claims for the first weeks or months); severance from non-WMSCOG family (the 'spiritual family' takes precedence over the 'fleshly family'); financial extraction via tithing plus mandatory 'thanksgiving' offerings; total time consumption (multiple weekly services plus volunteer events plus Bible study); doomsday urgency (the Second Coming is imminent and members must complete the 'gospel work' before judgement); and severance threat for members who question Zhang's deity status. Vice (2020) documentary God the Mother and the Atlanta Journal-Constitution (2018) investigative series provided the most detailed mainstream-media accounts.

The CLCI 33 (Extreme) reflects the deceptive recruitment, living-deity doctrine, severance pressure, and the documented financial-extraction patterns. The organisation differs from Shincheonji in being doctrinally Sabbatarian (Saturday Sabbath) and explicitly building on Ahn Sahng-hong's Seventh-day Adventist background.