Religious texts have been found on the walls of dozens of churches in the UK.
Religious texts have also been found in schools, colleges, libraries and in prisons.
But the BBC has spoken to a church minister who says the texts were found by accident and that they are not a form of religion at all.
The text, the first in Britain to be written in Christian language, was discovered by parishioners who had been in the church and had discovered it during a morning service.
Archbishop of Canterbury, Justin Welby, said the text was not a religious text, and he apologised to the community for its discovery.
“I know that this text is not religious,” he said.
He said the discovery came about after someone from the parish asked the parish to put the text up in a church in a remote part of the country.
“I can only imagine how upset the parishioner was and how upset they were when they discovered this text, in a place where they knew so little about its content,” he added.
In the book, which was written in the early 16th century, a woman called Sarah describes the journey she took from her home in England to be a “flesh and blood” person.
Sarah says she was “born a Christian and became a Catholic” and she believes God gave her a soul that can be redeemed.
“And when you have a soul, you can redeem yourself and you can have eternal life and you have that kind of experience that only God can give you,” she says.
The BBC has also spoken to the author of the text, which has been published in the Church of England’s History of England.
It is entitled “How God has called me to be his servant”.
The text is a “Christian” text, said Rev Dr James Wilson, a former parish priest who was formerly the vicar of Westminster Cathedral.
Rev Wilson says that in the book he has seen references to “the Holy Spirit” and the Bible.
But he said that in reality the text is about a woman who has been converted to Christianity, not God.
Some parts of the book were published in 1718, when the text appeared, but the date is unknown.
Rev Wilson said the church is very cautious in what it publishes and has asked the police to keep an eye on the books, because they could be considered dangerous.
“They’re probably very safe in the hands of people who have no knowledge of Christianity,” he told the BBC.
“But we don’t want them to be published in public.”
Archbishop Welby told the Catholic newspaper the Herald that the texts contained “religious information” and that there was no “direct or explicit religious connection”.
He added that the text “was written in a form that has nothing to do with a religion, and was written without the presence of any religious persons”.
“In this sense it is a secular book, and there is nothing in it that relates to the Christian faith or to the Catholic faith,” he wrote.
The Archbishop also said the texts “did not give any hint of a religious or supernatural nature to the writer”.
“The only indication that I can see that it was written by someone who was influenced by the teachings of Christianity is that it mentions that a person of whom it is written is God’s servant,” he concluded.