But when he saw many of the Pharisees and Sadducees coming for baptism, he said to them, "You brood of vipers! Who warned you to flee from the wrath to come?

Then Jesus said to them, "Take heed and beware of the leaven of the Pharisees and the Sadducees."

And as they were speaking to the people, the priests and the captain of the temple guard and the Sadducees came up to them,

But the high priest rose up and all who were with him, that is, the party of the Sadducees, and they were filled with jealousy.

But when Paul perceived that one part were Sadducees and the other Pharisees, he cried out in the council, "Brethren, I am a Pharisee, a son of Pharisees; with respect to the hope and the resurrection of the dead I am on trial."

Which

Now if Christ is preached that he has been raised from the dead, how can some of you say that there is no resurrection of the dead?

who have gone astray from the truth. They say that the resurrection has already taken place, and upset the faith of some.

General references

For the Sadducees say that there is no resurrection, nor an angel, nor a spirit, but the Pharisees acknowledge them all.