The “not fake” part refers to the age of the document, not to the accuracy of it, just like the rest of the bible.

An ancient, business-card-sized papyrus fragment that appears to quote Jesus Christ discussing his wife is real, Harvard University announced Thursday. The fragment caused international uproar when it was revealed by a Harvard historian in September 2012, with prominent academics and the Vatican swiftly deeming it a forgery.

Harvard officials said scientists both within and outside the university extensively tested the papyrus and carbon ink of the badly aged fragment, dubbed the “Gospel of Jesus’ Wife.” The document, written in Coptic, a language of ancient Egyptian Christians, is made up of eight mostly legible dark lines on the front and six barely legible faded lines on the back. The handwriting and grammar were also examined over the last year and a half to confirm its authenticity. Scientists have concluded the fragment dates back to at least the sixth to ninth centuries, and possibly as far back as the fourth century.

The document was never meant to prove Jesus was married, Harvard Divinity School professor Karen L. King emphasized Thursday. Instead, she argued, it’s meant to highlight that some early Christians may have believed Jesus was married. The distinction is significant because debates over sexuality and marriage have dominated contemporary discussions about Christianity; the Catholic Church cites Jesus’ celibacy as one reason its priests must not have sex or marry.

More: ‘Gospel of Jesus’ Wife’ Papyrus Is Ancient, Not Fake, Scientists and Scholars Say