Bring sound Bible teaching to the world’s unserved languages

Spoken inMexico131 MColombia50 MSpain47 MArgentina45 MUSA (Hispanic)43 M

Largest served-Christian gap of any high-confidence language.

Who this reaches: Asambleas de Hermanos assemblies across ~20 Latin-American countries lack a deep commentary corpus.

• Guatemala and Honduras are ~40% evangelical — the highest share in the Spanish-speaking world.
• Reina-Valera 1960 has been the Spanish evangelical reference Bible for three generations.
• Latin-American evangelicals are the fastest-growing wing of global Christianity after African Pentecostalism.

Spoken inBrazil216 MAngola35 MMozambique30 MPortugal11 M

Fastest-growing Protestant reader base on earth.

Who this reaches: Brazilian evangelical church is the fastest-growing Protestant demographic globally.

• Brazil went from ~5% evangelical in 1980 to ~31% today — the fastest Protestant growth in any large country.
• Angola and Mozambique have had active Brethren-tradition assemblies since the 1920s.
• São Paulo hosts the largest Assemblies of God congregation in the world.

Spoken inTanzania80 MKenya55 MDR Congo (east)40 MUganda10 MRwanda + Burundi15 M

East Africa's lingua franca with a thin commentary shelf.

Who this reaches: Lingua franca of ~120 M East-African Christians with a very thin commentary ecosystem.

• One of the working languages of the African Union — used across five countries daily.
• The East African Revival (1930s–50s) shaped the region's evangelical identity but left a thin commentary shelf.
• Kenya is one of the most Christian countries in the world by share (~85%), yet deep commentary is mostly imported from English.

Spoken inRussia150 MUkraine (L2)30 MKazakhstan13 MBelarus7 MGermany / Israel diaspora4 M

Russophone evangelicals across the post-Soviet world.

Who this reaches: Evangelical Christian-Baptist and Brethren-adjacent congregations in the post-Soviet space.

• The Evangelical Christian-Baptist church is Russia's largest non-Orthodox body, with roots in the 19th-century Stundist awakening.
• Post-2022 Ukrainian refugees in the EU reach ~8 million — a Russian-reading audience hungry for sound exposition.
• Russian ministry material also reaches Central Asian Russian-speaking Christian minorities.

Spoken inChina (PRC)918 MTaiwan23 MSingapore1.4 M

Highest raw reach of any language on this page.

Who this reaches: ~1.06 B non-Christian Mandarin speakers — the largest unreached pool on earth.

• The Chinese house-church movement is widely regarded as the largest body of Protestant Christians alive — and the one with the thinnest access to deep commentary.
• Mainland PRC restrictions mean most Chinese believers read Christian literature through underground or diaspora channels.
• Watchman Nee and Witness Lee left a large Brethren-derived Chinese corpus, but classical open-Brethren commentary in Mandarin is sparse.

Spoken inDR Congo77 MFrance67 MIvory Coast25 MMadagascar20 MCameroon18 MCanada (Québec)7 M

Darby's own native language; strongest classical Brethren ties.

Who this reaches: Francophone West and Central Africa — the largest French-speaking Christian population, with a much thinner commentary shelf than Europe.

• French is the lingua franca of 20+ African countries — where the largest francophone Christian population lives.
• Darby personally translated the Bible into French and published Le Nouveau Testament in 1859.
• The Bibles et Publications Chrétiennes house in France has published classical Brethren ministry in French for 150+ years.

Spoken inUkraine30 MEU refugee diaspora6 MCanada1.3 MUSA1 MBrazil0.6 M

Diaspora demand surged after 2022 — urgent commentary gap.

Who this reaches: Displaced Ukrainian churches in Europe have accelerated demand for deep theological resources in Ukrainian.

• The Ukrainian Baptist Union is the largest Protestant body in the country — ~2,000 congregations.
• ~8 million Ukrainians have been displaced to the EU since 2022; most are hungry for Ukrainian-language Christian resources.
• Traditional Brethren ministry reached Ukraine through Romanian and Polish borders before 1917.

Spoken inIndonesia230 MMalaysia33 MSingapore2 MTimor-Leste1.3 M

One translation serves 280 M across Indonesia + Malaysia.

Who this reaches: Largest Muslim-majority population on earth; Indonesian and Malay are mutually intelligible, serving both nations with one translation.

• Indonesia has over 270 distinct people groups; Papua province alone is ~85% Christian.
• Indonesian and Malay are ~95% mutually intelligible — one translation reaches both nations.
• The Batak people of north Sumatra are ~50% Christian — one of the largest indigenous Protestant populations in Asia.

Spoken inVietnam85 MUSA (diaspora)1.5 MCambodia0.6 MFrance0.4 MAustralia0.3 M

Growing church, thin commentary shelf.

Who this reaches: Growing Vietnamese evangelical church has limited access to Reformed / Brethren commentary literature.

• Vietnam has 54 recognised ethnic groups; Protestant growth is strongest among the Hmong and Montagnard peoples of the central highlands.
• The first Protestant missionary church in Vietnam was planted in Đà Nẵng in 1911.
• Saigon's French-era Catholic cathedral is still one of Southeast Asia's most recognisable Christian landmarks.

Spoken inJapan125 MBrazil (Nikkei)1.5 MUSA (Hawaii + West Coast)0.8 M

Highly literate, almost entirely unreached.

Who this reaches: Evangelical share below 0.5% for 70 years; Japanese-language Brethren commentary is essentially absent.

• Japan has never crossed 1% evangelical in its recorded history — the largest unreached developed nation on earth.
• Uchimura Kanzō founded the Non-Church Movement (無教会), a uniquely Japanese form of Christianity that still influences reading culture today.
• The Brazilian Nikkei (Japanese-descent) community is a growing second wave of Japanese-language evangelical readership.

Spoken inTurkey85 MGermany (diaspora)3 MCyprus (north)0.3 MBulgaria0.6 MNetherlands (diaspora)0.4 M

Biggest literature greenfield of any confident-tier language.

Who this reaches: Turkish Christian literature is near-zero — the largest literature gap among high-confidence languages.

• Asia Minor — modern-day Turkey — is the setting of most of Acts 13–20 and the seven churches of Revelation 2–3.
• The first Turkish New Testament was printed in 1666 (the Ali Bey Bible); a full modern Turkish Bible only appeared in 2001.
• Ethnic-Turkish Christians today number fewer than ~10,000 worldwide — a ratio of one believer to every 8,000 non-Christians.