The more we know and understand the historical, cultural and linguistic background of the Bible, the more we are able to discern elements in the biblical text that heretofore have gone unnoticed. These can be elements that can greatly increase our understanding of the biblical text, reinforce our traditional conceptions, or at times radically transform our understanding by revealing totally unexpected information that affects how the texts would have been originally understood.
The Value of Rabbinic Literature as an Historical Source

Scholars in Israel tend to view synoptic gospel texts, and other Jewish texts from the Second Temple period, through Hebraic and rabbinic eyes. Many Israeli scholars, including the late Professor Shmuel Safrai, are in the habit of first translating synoptic texts to Hebrew to see with what ease they go into Hebrew; and then secondly, comparing the resultant translation with rabbinic sources in an effort to determine whether culturally such and such was ever said or done in rabbinic times. Unfortunately, it has become common in many scholarly circles outside Israel to dismiss rabbinic literature as having little validity as background to the synoptic gospels since rabbinic sources were compiled long after these gospels were written. In this article Safrai provides convincing evidence that much of later rabbinic literature faithfully reflects the situation in Second-Temple times. He demonstrates just how important the rabbinic material is for gaining a fuller understanding of the Gospels.—DB.
Literary Languages in the Time of Jesus

Not only was Hebrew the most prevalent spoken language in the land of Israel during the first century, it was also the language in which most literary works were written.
Spoken Languages in the Time of Jesus

Professor Safrai presents an overview of the three languages used in the land of Israel during the days of Jesus, and concludes that Hebrew was the primary language spoken by the Jewish residents at that time.