Bishop in the Grove became popular with Pagans of different traditions, its comments section a virtual meeting place. At its peak, Mr. Bishop said this week, the site got as many as 10,000 unique visitors a month. At Pagan gatherings and conventions, he was a treated like a celebrity — and more so because in July 2012 Teo Bishop came out as Mr. Morris, merging his two public identities. He also changed his name legally.

By 2013, Mr. Bishop made the cover of Witches & Pagans magazine. That issue was still on the newsstands on Oct. 13, when Mr. Bishop wrote online about the new Christian complications in his spiritual life.

In that post, Mr. Bishop told of an encounter with a woman, probably homeless, sitting next to her shopping cart. He gave her some food. “God bless you,” she said to him. That exchange stayed with him, and he soon felt himself called back to God — to a Christian conception of God.

About three weeks ago, he attended an Episcopal church in his hometown, Portland, Ore. He decided beforehand that he would hold nothing back, that he would pray the liturgy despite lingering misgivings about Christianity. “ ‘I am just going to give myself over to it, not intellectualize it,’ ” he told himself. “It was an amazing experience.”

In his recent blogging, Mr. Bishop has been respectful of Paganism, noting how much he learned from the tradition. His fellow Pagans have responded sympathetically, if with a little confusion.

“It’s been received with a mixture of voices,” said T. Thorn Coyle, a well-known Pagan who lives in the San Francisco area. “Some people have been very startled and shocked by it. I think other people are very appreciative that he is continuing sharing his highly emotional spiritual process with us.”

Jason Pitzl-Waters, who runs the website The Wild Hunt, said in an interview that while Pagans have been supportive of Mr. Bishop, they can be wary even of friendly Christians.