Ulfilas, or Wulfila, was the son or grandson of Christians from Sadagolthina (near Parnassus[4][5]) in Cappadocia who had been taken captive by the Goths. In 337 or 341, Ulfilas was sent by Arian emperor Constantius II to preach to the Goths in their language, and became the first bishop of the (Arian Christian) Goths. By 348, one of the (pagan) Gothic kings (reikos) began persecuting the Christian Goths, and Ulfilas and many other Christian Goths,[6] fled to safety within the Roman Empire's borders.
Between 348 and 383, Ulfilas translated the Bible into the Gothic language.[7][8] Thus some Arian Christians in the west used the vernacular languages, in this case including Gothic and Latin, for services, as did Christians in the eastern Roman provinces, while most Christians in the western provinces used Latin.
https://en.wikipedia.org/wiki/Christ...rmanic_peoples
"In addition to these pagan beliefs, there are numerous attestations of Huns converting to Christianity and receiving Christian missionaries."
https://en.wikipedia.org/wiki/Huns