Differences

Belief in resurrection and immortality of the soul, as did the Pharisees (but not the Sadducees)

They turned to the sun while praying, in contrast to the Jewish custom of turning toward the temple

Differed with the priestly leaders in Jerusalem on some matters of legal interpretation.

364 day solar calendar rather than 354 day lunar calendar used by Jerusalem priests

Belief in predestination, not as the Sadducees