Josephus: Jewish War

12. There are also those among them who undertake to foretell things to come, 7 by reading the holy books, and using several sorts of purifications, and being perpetually conversant in the discourses of the prophets; and it is but seldom that they miss in their predictions.

13. Moreover, there is another order of Essens, 8 who agree with the rest as to their way of living, and customs, and laws, but differ from them in the point of marriage, as thinking that by not marrying they cut off the principal part of human life, which is the prospect of succession; nay, rather, that if all men should be of the same opinion, the whole race of mankind would fail. However, they try their spouses for three years; and if they find that they have their natural purgations thrice, as trials that they are likely to be fruitful, they then actually marry them. But they do not use to accompany with their wives when they are with child, as a demonstration that they do not many out of regard to pleasure, but for the sake of posterity. Now the women go into the baths with some of their garments on, as the men do with somewhat girded about them. And these are the customs of this order of Essens.

14. But then as to the two other orders at first mentioned, the Pharisees are those who are esteemed most skillful 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 behavior 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.