Swahili is the most widely spoken African language of the Bantu family. It is a national language of Tanzania and Kenya, is used across Uganda, Rwanda, Burundi and eastern Congo, and has been adopted by the African Union as one of its working languages. Estimates of how many people speak it vary widely, from about 100 million to more than 200 million, because most speakers learn it as a second language and counts differ in what they include.
The Swahili Bible is now one of the most read Bibles in Africa. Its history is short compared with the Greek, Latin or Syriac Bibles: it begins in the 1840s. But it is closely tied to a larger story, the making of a standard written Swahili, and it shows clearly how translators, missions, colonial governments and, above all, Swahili speakers themselves shaped a language and its scriptures together.
A language that was already written
Swahili grew up over many centuries in the towns of the East African coast, from southern Somalia to Mozambique, where African communities traded across the Indian Ocean with Arabia, Persia and India. The language is Bantu in its grammar and much of its vocabulary, but it has borrowed many words from Arabic, and smaller numbers from Persian, Portuguese, Hindi and later English.
It is important to say that Swahili was a written language long before any missionary arrived. Swahili poets wrote in Arabic script, and long narrative poems survive from at least the early eighteenth century. Swahili coastal culture was, and is, largely Muslim. Bible translators therefore came to a language with its own literature and its own religious vocabulary, much of it shaped by Islam.
The missionaries chose to write Swahili in the Latin alphabet. That choice eventually became universal, and Swahili in Arabic script is now uncommon outside some poetic and religious traditions.
Ludwig Krapf at Mombasa
The first Christian missionary to work seriously on Swahili was Johann Ludwig Krapf (1810–1881), a German Lutheran from Württemberg who served with the Anglican Church Missionary Society (CMS). After years in Ethiopia, he arrived at Mombasa in 1844. Within weeks his wife Rosine and their newborn daughter died of fever. Krapf stayed, and he was joined in 1846 by another German, Johannes Rebmann.
Krapf began translating almost at once. He worked on Genesis and parts of the New Testament, and a portion of Genesis was printed in the late 1840s, by most accounts the first part of the Bible ever printed in Swahili. His renderings were early and tentative, made by a foreigner still learning the language, and they were soon superseded. His lasting contribution was linguistic: an outline grammar published in 1850 and, much later, A Dictionary of the Suahili Language (1882), which recorded a great deal of coastal vocabulary.
Krapf also had larger hopes. He imagined a chain of missions across Africa and believed that Swahili could become a language for reaching the interior. In that, at least, he was right, although it was trade, colonial administration and African speakers, not missions alone, that carried Swahili inland.
Edward Steere and the Zanzibar Bible
The next major stage came from Zanzibar, the island that was then the political and commercial centre of the coast. The Anglican Universities’ Mission to Central Africa (UMCA) moved its base there in 1864. One of its members, Edward Steere (1828–1882), later bishop of Zanzibar, became the most important Swahili scholar of his generation.
Steere’s Handbook of the Swahili Language as Spoken at Zanzibar (1870) became the standard grammar for decades. He collected Swahili stories, ran a mission printing press at which freed slaves educated by the mission learned to work, and translated much of the Bible into the Swahili of Zanzibar town, known as Kiunguja. He is also remembered for building Christ Church Cathedral in Zanzibar on the site of the former slave market.
Steere completed the New Testament and parts of the Old before his death in 1882. Colleagues finished the work, and the complete Bible in Zanzibar Swahili is usually dated to 1891, although the dates of individual books and editions are given differently in different sources. Like all the early versions, it depended on African helpers whose names are seldom recorded.
Two dialects, two Bibles
The CMS missionaries in Kenya did not adopt the Zanzibar translation. They worked in the Swahili of Mombasa, Kimvita, which has a richer older literature and differs from Kiunguja in pronunciation, vocabulary and some grammar. Separate Mombasa-dialect Scriptures were produced in the late nineteenth and early twentieth centuries, including a New Testament published by the British and Foreign Bible Society in 1914; CMS missionaries such as William Taylor and Harry Binns were among those who worked on them.
Meanwhile, German missions in what was then German East Africa (later Tanganyika, now mainland Tanzania) also used Swahili, which the German colonial government had made a language of administration. So by the early twentieth century there were rival Swahili Bibles, tied to rival dialects and rival missions. This was a familiar pattern in missionary translation, and it raised a practical question: which Swahili should be written, taught and printed?
Standard Swahili
The question was answered not by the churches but by the British colonial governments of Kenya, Tanganyika, Uganda and Zanzibar. In the late 1920s, education officials and missionaries agreed that a single standard was needed for schools and books, and that it should be based on the Zanzibar dialect. In 1930 the Inter-Territorial Language Committee was set up to standardise spelling and grammar and to approve textbooks. Its work led to the standard Swahili–English and English–Swahili dictionaries edited by Frederick Johnson and published in 1939.
The choice of Kiunguja was controversial at the time. Speakers of Mombasa Swahili felt that a richer literary dialect had been passed over, and some critics complained that the new standard was a schoolroom language shaped by Europeans. Historians still discuss how far standard Swahili was an imposition and how far it simply recognised the Zanzibar Swahili that was already spreading along the trade routes. Either way, the standard took hold, and after independence Tanzania in particular made Swahili central to national life.
The Steere tradition had a head start because the standard was close to the dialect in which it was written.
The Union Version
Once there was a standard language, a common Bible became possible. Protestant missions in Kenya and Tanganyika cooperated on a new translation that would replace both the Zanzibar and Mombasa versions. The result is known as the Union Version, “union” referring to the cooperation of the churches behind it. Its New Testament appeared first, and the complete Bible is usually dated to 1952.
The Union Version became, for East African Protestants, what the King James Version long was for English speakers: the Bible of public worship, memorised verses and hymns. It is still widely used and loved, even though its language now sounds formal and in places old-fashioned. Like most translations of its time, it was made largely by missionaries working with African colleagues, whose contribution is less well recorded than it deserves.
Catholic and common-language Bibles
Catholic missions produced their own Swahili translations, first of portions and the New Testament and later of the complete Bible including the deuterocanonical books. After the Second Vatican Council, Catholic and Protestant translators increasingly worked together across East Africa.
The most important result is Biblia Habari Njema (“Good News Bible”), a common-language translation prepared under the Bible Societies of Kenya and Tanzania as an interconfessional project, with Catholic participation, and published in the 1990s. It followed the meaning-based approach associated with Eugene Nida (see Word for word or meaning for meaning?), aiming at Swahili that ordinary readers would understand on first hearing. Unlike the Union Version, it was made with African scholars and native speakers playing a leading part. Other modern versions have followed since.
Words for God
Every Swahili translation faces a question about vocabulary. Many religious words in Swahili come from Arabic and are shared with Muslim usage. Translators have generally used the Bantu word Mungu for God and Arabic-derived terms such as Injili (Gospel), roho (spirit) and rehema (mercy), while Christians say Yesu for Jesus where Muslims say Isa. These choices help Christian and Muslim neighbours understand each other’s speech, but they also mean that the same word can carry different associations in different communities. A translator must ask not only what a word means in a dictionary, but what it means to the people who will hear it.
Open Word Bible in Swahili
Swahili is one of the four languages of Open Word Bible, alongside English, Spanish and French. As in every language, the Swahili is translated from the Greek and Hebrew, not from English, and every sentence shares the same meaning decisions as the other languages, while wording decisions are made for Swahili itself (see Literal, Balanced, Readable: three levels, one meaning).
Swahili drafts already exist for some books. They are AI-assisted, and none has yet been reviewed. Like the earliest Swahili Bibles, they need what translators have always needed most: native speakers who can say whether a sentence sounds like real Swahili. Open Word Bible will not mark any of its Swahili as reviewed until a named reviewer fluent in Swahili has read it. If you are such a reader, the project on GitHub is the place to start.
Sources
- Krapf, J. Lewis. Travels, Researches, and Missionary Labours during an Eighteen Years’ Residence in Eastern Africa. London: Trübner, 1860.
- Krapf, Ludwig. A Dictionary of the Suahili Language. London: Trübner, 1882.
- Steere, Edward. A Handbook of the Swahili Language as Spoken at Zanzibar. London: Bell and Daldy, 1870.
- Johnson, Frederick. A Standard Swahili–English Dictionary. London: Oxford University Press, 1939.
- Whiteley, Wilfred. Swahili: The Rise of a National Language. London: Methuen, 1969.
- Mojola, Aloo Osotsi. “The Swahili Bible in East Africa from 1844 to 1996.” In The Bible in Africa: Transactions, Trajectories and Trends, edited by Gerald O. West and Musa W. Dube. Leiden: Brill, 2000.
- Sanneh, Lamin. Translating the Message: The Missionary Impact on Culture. 2nd ed. Maryknoll, NY: Orbis, 2009.
- Hastings, Adrian. The Church in Africa, 1450–1950. Oxford: Clarendon Press, 1994.