The Khabouris Codex was produced in the 12th century, not 164 AD, and is simply the standard text of the Syriac Peshitta, a 5th Century text.
Yes My Error, it is a first generation copy of the 2nd century manuscript.
therefinersfire.org/khabouris_codex.htm
From Andrew Gabriel Roth:
All Aramaic manuscripts have a bookmark that dates them and includes the name of the scribe, where it was done, and the year it was done. Khabouris bookmark says: "Dated to the great persecution" which refers to the first widespread persecution under Nero, in 164 CE. This is not only my opinion; it's the opinion of the experts who are the custodians of the manuscript.
I have spent 15 years showing people proof that the Greek NT is full of readings that are mistranslations from Aramaic originals - i.e., Leper vs. jar maker, the missing generation in Matthew 1 in all Greek copies that is restored by translating correctly one Aramaic word, and so on....
Age: The AENT website says "The Khabouris Manuscript is a copy of a Second Century New Testament, which was written in approximately 165 AD (internally documented as 100 years after the great persecution of the Christians by Nero, in 65 AD). Carbon dating has found this copy of the New Testament to be approximately 1,000 years old. Given its origins, this would make it a copy of the oldest known New Testament manuscript." Resources: 1) Unpublished writings of Abbott Gerrit Crawford, PhD, MSJ, Western-Rite Syrian Orthodox Church in America 2) Fr. Michael Ryce, N.D., D.C.P."
That makes the Khabouris itself from the 9th Century, but it is a copy of the original - meaning the scribe who made the copy, also copied the date information from the original, 2nd Century document.
According to Aramaic scholar and historian Andrew Gabriel Roth, scribes would put a "bookmark" of sorts in the document which identified them (i.e. the scribe) and the date of the work. So what this means, it is important to understand, the Khabouris is a "copy" - not done by an original, trained scribe, so the scribe who was doing the copy, simply copied the original scribe's marks into the Khabouris.
That being said, the Khabouris itself contains the words which were written in the 2nd Century (approximately 164 CE). This makes it contain the oldest known text of the New Testament. Of the oldest Greek manuscripts, the oldest dates from 3rd Century, making the date of the text in the Khabouris, approximately 50-60 years older.