Matthew 16:6
Then Jesus said to them, Take heed and beware of the leaven of the Pharisees and of the Sadducees.
Torrey's Topical Textbook—AKJV

Mark 8:15
And he charged them, saying, Take heed, beware of the leaven of the Pharisees, and of the leaven of Herod.
Torrey's Topical Textbook—AKJV