What Bible did the apostles use?

Answer 1

We know that the four evangelists, who wrote the Gospels of Matthew, Mark, Luke and John, used the Septuagint Bible, an early Greek translation of the Hebrew scriptures.

Evidence of this can be found, for example, in Mark 7:7, where Jesus is said to have quoted words from the Book of Isaiah: "in vain do they worship me." This comes from Isaiah 29:13 - but only the Septuagint and only in Greek. The Septuagint was never used in ancient Palestine, so these words could not really have been spoken by Jesus.

Answer 2

The only codified writings for Scripture were the Old Testament or Hebrew scrolls. It wasn't until the mid to latter 1st century A.D. that the writings of the 27 New Testament books was completed. It is interesting to note for those who discount the Old Testament writings that the Book of Isaiah is the most frequently quoted from and is referred to as 'the little Bible' by some. Of course today there are many versions of the New Testament with some 'variety' to the wording of a translation making it a bit confusing for some to justify evidence against a passage or verse being quoted by Jesus.