Fairfax, Va.

“I BELIEVE that in 1978 God changed his mind about black people,” sings Elder Kevin Price in the Broadway musical “The Book of Mormon.” The line is meant to be funny, and it is — in part because it’s true.

In a June 1978 letter, the first presidency of the Church of Jesus Christ of Latter-day Saints proclaimed that “all worthy male members of the Church may be ordained to the priesthood without regard for race or color.” Men of African descent could now hold the priesthood, the power and authority exercised by all male members of the church in good standing. Such a statement was necessary, because until then, blacks were relegated to a very second-class status within the church.

The revelation may have lifted the ban, but it neither repudiated it nor apologized for it. “It doesn’t make a particle of difference,” proclaimed the Mormon apostle Bruce R. McConkie a few months later, “what anybody ever said about the Negro matter before the first day of June of this year, 1978.”

Mr. McConkie meant such words to encourage Mormons to embrace the new revelation, and he may have solemnly believed that it made the history of the priesthood ban irrelevant. But to many others around the country, statements of former church leaders about “the Negro matter” do, in fact, matter a great deal.