The Vatican’s recent declaration allowing the blessing of same-sex couples caused a stir around the globe, but perhaps most of all in Africa, a rising center of the Roman Catholic Church’s future. In one statement after the next, bishops in several countries spoke of the fear and confusion the declaration has caused among their flocks, and said it was out of step with the continent’s culture and values.

The bishops also harbored a deeper fear: that in a place where the church is growing faster than anywhere else in the world, and where many forms of Christianity are competing for worshipers, the declaration could slow the church’s expansion on the continent.

Bishop John Oballa of the Ngong Diocese near Nairobi said that a woman had written to him saying that a friend told her he wanted clarification on the declaration, or else he would convert to the Methodist Church.

“There’s a lot of vibrancy in many, many dioceses of Africa,” Bishop Oballa said in an interview. “We need to safeguard against anything that might derail that growth.”