Priest Resigns Post Over Vatican Document

(12-15) 12:13 PST Collegeville, Minn. (AP) --

A priest at St. John's University said he was resigning his leadership position because of the Vatican's latest statement that homosexuals should be barred from entering the Roman Catholic priesthood.

"Because I can no longer honestly represent, explain and defend the church's teaching on homosexuality, I feel I must resign," the Rev. Bob Pierson said in an e-mail Wednesday to administrators and students at St. John's and the nearby College of St. Benedict.
. . .
Pierson, the chaplain and director of campus ministry, said in the e-mail that that he is gay and celibate. He said he did not accept several elements in the Vatican document, including the assertion that homosexuals are "objectively disordered."

If the document contained nothing new, but reiterated the teachings and position of the Church, why did he not resign years ago?

Source.