1) Matthew 3:7, John the Baptist called the Sadducees “a brood of
    vipers.”  Note their spiritual racism in 3:9.

2) Matthew 16:6, Jesus warned of “the laven of the Pharisees and
    Sadducees.”  “Laven” = “the teaching of the Pharisees and Sadducees”
    according to 16:12b.

3) Mark 12:18; says that the Sadducees say: “there is no resurrection.”
    In Mark 12:24, Jesus said to them: “Is this not the reason you are
    mistaken, that you do not understand the Scriptures or the power of
    God?”  He also said to them in Mark 12:27: “He is not the God of the
    dead, but of the living; you are greatly mistaken.” Compare Acts

     Conclusions: The Sadducees were in control of the Temple and the
     High Priesthood (See Acts 4:1 and 5:17), but were spiritually “greatly
     mistaken.”  So are any who ‘do not understand the Scriptures or the
     power of God.’