Another document that attest to the rendition of the phrase "Church of Christ" in Acts 20:28
This information was taken from a website called TheAramaicScripture.com that features the Holy Aramaic Scriptures. The following text are copied that you could check for yourself if you would visit their website.
The Khabouris Codex
This website features The Holy Aramaic Scriptures, as preserved in the ancient Eastern Aramaic Text of the New Testament, in such manuscripts as the Yonan Codex. This Khabouris Codex, and the Mingana 148 Codex, for you to read and study; giving as literal as possible a rendering of this Holy Biblical Text, in a fresh, accurate, and literal, English translation.
The Text
The Aramaic Text used to translate here at TheAramaicScripture.com is from Eastern Aramaic Manuscripts, such as The Khabouris Manuscript, pictured above, it being a hand-written Eastern Aramaic New Testament, scribed in the ancient city of Nineveh, which took place sometime between 900 to 1100 A.D. and is internally documented and officially certified by a Bishop of The Holy Apostolic Church of the East, as being a faithful copy of a much older Eastern Aramaic New Testament Manuscript, most likely of the mid 5th century, which most likely was itself a faithful copy of The Original Aramaic New Testament Scriptures, which was personally handed to The Church of the East by the Apostles themselves, in the ancient City of Edessa, in the 1st century.