Was the entire New Testament written originally in Greek?
Beginning before 500 BC, the Greeks spread throughout the Mediterranian, establishing colonies in the Black Sea and in the south of what is now France. After defeating two Persian invasions, their culture expanded even more. In the last half of the 4th Century BC, Alexander the Great conquered everything from Egypt to India.
As a result, the Greek language became the Lingua Franca of the ancient world, and all educated people could read, write and speak Greek – particularly a version called the Koine. It was essential to business and trade to be able to speak the Koine.
At the behest of the Ptolomys of Egypt, the Old Testament was translated into Greek – supposedly by a committee of 70 or 72 Greek-speaking Jewish scholars. This Greek translation is called the “Septaugent” (meaning “70”) and often abbreviated as LXX (Roman numerals for 70.)
The Septaugent was the most widely used version of the Bible in the time of Christ. Relatively few Jews could actually read Hebrew, but most could read and speak Greek – especially the Diaspora – Jews settled in other lands.
All the books of the New Testament were written in the Koine
as we have received them.
Were some books originally written in Aramaic then translated into Greek?
Traditionally, Matthew is supposed to have written a gospel in either Aramaic or Hebrew. The version we have may be a translation of this Aramaic or Hebrew gospel. But all the Old Testament quotes in Matthew are from the Septaugnet,
not the Hebrew bible.
Also, was the author of John’s Gospel the disciple John, John the Baptist, or another John?
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John the Baptist was dead – beheaded by Herod – before any gospels were written down. The John who wrote the Gospel according to John had a disciple called Polycarp, who became the Bishop of Smyrna. Polycarp, who knew the author of the Gospel and of
Revelation, tells us he was the Apostle John.
Now, it is possible that the Gospel was actually written down from John’s oral preaching, not by John’s own hand. That would not, in ancient times, change the authorship attribution.