Matthew 16:12

Then they realized that what he told them to beware of was not leaven but the teaching of the Pharisees and Sadducees.

Matthew 5:20

For I tell you, unless your goodness excels that of the scribes and Pharisees, you will never get into the Realm of heaven.

Matthew 15:4-9

God enjoined, Honour your father and mother, and, He who curses his father or mother is to suffer death.

Matthew 23:13-28

Woe to you, you impious scribes and Pharisees! you shut the Realm of heaven in men's faces; you neither enter yourselves, nor will you let those enter who are on the point of entering.

Acts 23:8

For while the Sadducees declare there is no such thing as resurrection, angels, or spirits, the Pharisees affirm them all.

Treasury of Scripture Knowledge

Summary

Then understood they how that he bade them not beware of the leaven of bread, but of the doctrine of the Pharisees and of the Sadducees.

Bible References

But

Matthew 15:4
God enjoined, Honour your father and mother, and, He who curses his father or mother is to suffer death.
Matthew 23:13
Woe to you, you impious scribes and Pharisees! you shut the Realm of heaven in men's faces; you neither enter yourselves, nor will you let those enter who are on the point of entering.
Acts 23:8
For while the Sadducees declare there is no such thing as resurrection, angels, or spirits, the Pharisees affirm them all.