ISB ~ Acts 23 v6
Sadducees … Pharisees:Two religious movements that emerged in Israel around the second century B.C. They were united on certain Jewish issues but deeply divided over others. The Pharisees, for instance, believed in the resurrection of the body, the unseen existence of angels and demons, and the hope of an afterlife, but the Sadducees denied all this and more (23:8). As a matter of strategy, Paul revealed his association with the Pharisees to generate partisan disputes and split the sympathy of the court.
See essays:Who Are the Pharisees? at Mk 2 and Who Are the Sadducees? at Mk 12.