Flavius Josephus 

Reference from https://answersingenesis.org/bible-history/is-josephus-reliable/

One of the most-quoted resources about the world during Bible times is the first-century historian Josephus. But who was this man, and should we trust what he has to say?

Famed Jewish historian Josephus Flavius was born in Jerusalem in AD 37 or 38, not long after Christ’s crucifixion. The son of a priest, he became a Pharisee, a military commander in the Jewish resistance, and an eyewitness to Jerusalem’s destruction in AD 70. Eusebius, the first church historian, calls him “the most famous Jew of his time” and tells of a statue erected in his honor in Rome.

For two millennia Christian scholars have preserved and studied Josephus’s works, especially his account of the Jewish revolt (The Jewish War) and a complete history of God’s people from creation to the first century (Antiquities of the Jews). Pastors often incorporate details from Josephus in their sermons without even realizing they came from him. But should we trust his works?

A Valuable Eyewitness

While every historian is fallible and must be read with care, historians can be very helpful, especially when they report firsthand knowledge. As a teenager, Josephus spent time with various Jewish sects and knew them well. He later observed the Jewish revolt from the front lines. When he was captured, he got to see the other side. In fact, he won the favor of the general, Vespasian, by accurately predicting his rise to the throne of the empire. Josephus ultimately switched sides and received Roman citizenship, even adopting Vespasian’s imperial family name, Flavius. He now had access to the emperor’s libraries, military reports, and court records from Herod and other rulers in Palestine.

The principal value of Josephus’s work lies in his discussion of Jewish history from 100 BC through AD 100. His narrative of this era is strongly supported by numerous authentic sources he gathered and interpreted with skill.

Josephus’s works provide us with valuable details that do not survive in any other records. In fact, he provides the most important extrabiblical information on many key political figures, such as Herod the Great, Felix, and Pilate. For instance, most of our knowledge of Herod’s extensive building projects, such as the temple that Christ often visited, comes from Josephus.

His works also provide insight into the inner workings of first-century Jewish sects such as the Pharisees and Sadducees. His description of another sect, the Essenes, helped confirm that they were the authors of the Dead Sea Scrolls. He also provides gripping details about other first-century events, such as the destruction of the temple (prophesied by Christ in Matthew 24:2) and the Jews’ last-ditch resistance atop Masada.

Yet Josephus was not an eyewitness to most events in his works. His history is only as good as his sources. The early history in The Antiquities of the Jews is far removed from his own personal experience. We can only be sure of the details that coincide with Scripture, but the others are no more trustworthy than the traditions he relied upon.

Pro-Jewish Bias

Though many Jews viewed Josephus as a traitor, he nevertheless remained loyal to his people. The Jewish revolt had caused hard feelings in Rome, and Josephus wanted to change that as a historian and apologist for the Jewish people. While praiseworthy, this bias is cause for caution.

His pro-Jewish sympathies emerge clearly in The Jewish War. That work portrays most Jews as peace-loving citizens. He blames Jewish zealots, whom he calls “bandits” and “brigands,” for the collapse of Jewish society in the first century.

The Jewish War

Josephus – The War of the Jews

Main article: The Jewish War

His first work in Rome was an account of the Jewish War, addressed to certain “upper barbarians”—usually thought to be the Jewish community in Mesopotamia—in his “paternal tongue” (War I.3), arguably the Western Aramaic language. In 78 CE he finished a seven-volume account in Greek known as the Jewish War (Latin Bellum Judaicum or De Bello Judaico). It starts with the period of the Maccabees and concludes with accounts of the fall of Jerusalem, and the succeeding fall of the fortresses of Herodion, Macharont and Masada and the Roman victory celebrations in Rome, the mopping-up operations, Roman military operations elsewhere in the Empire and the uprising in Cyrene. Together with the account in his Life of some of the same events, it also provides the reader with an overview of Josephus’s own part in the events since his return to Jerusalem from a brief visit to Rome in the early 60s (Life 13–17).