TAMPA, Fla. — Delegates at the Church of the Brethren’s annual conference received an update about deadly challenges facing the denomination’s sister church in Nigeria.

Ekklesiyar Yan’uwa a Nigeria (EYN, the Church of the Brethren in Nigeria) has been facing the assault of violent extremist Islamist group Boko Haram for years.

On July 13, EYN President Samuel Dali described the depth of the crisis . . .