Josephus on Pharisees on Compatibilism and Hell

Various Jewish sources of the Pharisaical (or related) stripe, provide us with useful background information on the subject of hell.  

Josephus, Jewish Wars, Book II, Chapter 8, Section 14:

But then as to the two other orders at first mentioned, the Pharisees are those who are esteemed most skilful in the exact explication of their laws, and introduce the first sect. These ascribe all to fate [or providence], and to God, and yet allow, that to act what is right, or the contrary, is principally in the power of men; although fate does co-operate in every action. They say that all souls are incorruptible, but that the souls of good men only are removed into other bodies, but that the souls of bad men are subject to eternal punishment. But the Sadducees are those that compose the second order, and take away fate entirely, and suppose that God is not concerned in our doing or not doing what is evil; and they say, that to act what is good, or what is evil, is at men’s own choice, and that the one or the other belongs so to every one, that they may act as they please. They also take away the belief of the immortal duration of the soul, and the punishments and rewards in Hades. Moreover, the Pharisees are friendly to one another, and are for the exercise of concord, and regard for the public; but the behaviour of the Sadducees one towards another is in some degree wild, and their conversation with those that are of their own party is as barbarous as if they were strangers to them. And this is what I had to say concerning the philosophic sects among the Jews. 

What do we know about Jesus and the Apostles?

Matthew 23:1-3

Then spake Jesus to the multitude, and to his disciples, saying, The scribes and the Pharisees sit in Moses' seat: all therefore whatsoever they bid you observe, that observe and do; but do not ye after their works: for they say, and do not.

Acts 23:6

But when Paul perceived that the one part were Sadducees, and the other Pharisees, he cried out in the council, Men and brethren, I am a Pharisee, the son of a Pharisee: of the hope and resurrection of the dead I am called in question.

Now, I would not go so far as to suggest that we should simply embrace wholeheartedly whatever one particular Pharisee, such as Josephus, said.  Nevertheless, Josephus' comments provide us with a background to the New Testament.  They provide us with the cultural assumptions of the first century readers.

Similarly, Philo writes: "Clearly this indicates the incorruptibility of the soul, which removes its habitation from the mortal body and returns as if to the mother-city, from which it originally moved its habitation to this place." (Questions and Answers on Genesis 3.11) 

Many modern-day Jewish sects reject eternal damnation.  Nevertheless, we find traces of this idea in, for example:

And, the following are they that have no share in the World to Come but suffer excision and loss of identity, and are damned for ever and ever for their exceeding wickedness and sinfulness: atheists, infidels, traducers of the Torah, dissenters of resurrection and the coming of a Redeemer, apostates, enticers of many to sin, seceders from the congregation, a public perpetrator of sins emulating Jehoiakim, informers, leaders who cast fear upon the congregation not for the sake of God, shedders of blood by defaming people in public, evil-tongued people, he who abolishes circumcision.

Mishneh Torah, Repentance 3.6

Once again, I must reiterate, we do not base our doctrines on those of the unbelieving.  We base our beliefs on Scripture.  These views merely provide background and help us to identify the appropriate interpretation of words within their first century context.