Books from English, Danish and Urdu were translated, including: The Passion of Jesus Christ and The Life and Teaching of Jesus; the Altarbook, with prayers and texts for the Church Year; Luther's smaller catechism; several hymns in Danish; and Why I became a Christian by Sultan Paul from Urdu.
In 1931 Christensen began the translation into Pushtu of Matthew's Gospel, followed in 1936 by the translation of John's Gospel, followed soon after by a new edition.