Here is some information that may raise doubt in the authenticity of every NT bible translation:
The verifiable manuscript evidence for the New Testament: a) is many decades later than the events described, b) is not in the Jewish language of the main figures, c) is very sparse before 400 C.E., d) has clearly been altered by later authors, e) has conflicting versions of the same books, f) represents only what the church could not destroy, f) conflicts with reasonable alternative histories, and, g) conflicts with other surviving traditions of Messianic Judaism.
Of the 5,487 Greek manuscripts, no two, apart from the very tiniest fragments, are identical. Furthermore, until beyond the 7th century, there is not one Greek manuscript that contains the books of the New Testament and just those books in their present order. The Codex Sinaiticus comes close, but it also contains the Epistle of Barnabas and the Shepherd of Hermas, works rejected nowadays.
2,811 of these manuscripts are in the minuscule writing. This tiny writing was only used from the 9th century onwards. 2,279 manuscripts are lectionaries and only about 30 (thirty) lectionaries date from before the 9th century. Out of desperation many claim that 5,000 Greek manuscripts from AD 800 or later count as a sort of evidence for what happened in first century Palestine.
sources: The Jesus Puzzle. Did Christianity Begin with a Mythical Christ? : Challenging the Existence of an Historical Jesus by Earl Doherty
* The Christ Conspiracy: The Greatest Story Ever Sold by Acharya S
* The Book Your Church Doesn't Want You To Read by Tim C. Leedom
* The Jesus Mysteries : Was the "Original Jesus" a Pagan God? by Peter Gandy (Author), Timothy Freke (Author)
* Deconstructing Jesus by Robert M. Price