Matthew 16:12

Then they understood that He did not bid them beware of the leaven of the bread, but of the teaching of the Pharisees and Sadducees.

Matthew 5:20

For I say to you that, unless your righteousness shall exceed that of the scribes and Pharisees, ye shall in no wise enter into the Kingdom of Heaven.

Matthew 15:4-9

For God said, 'Honor your father and your mother,' and 'He that speaks evil of father or mother, let him surely die,'

Matthew 23:13-28

"But woe to you, scribes and Pharisees, hypocrites! because you shut up the Kingdom of Heaven against men; for ye do not enter, neither do ye suffer those who are entering in to enter.

Acts 23:8

For the Sadducees say that there is no resurrection, nor angel, nor spirit; but the Pharisees acknowledge both.

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
For God said, 'Honor your father and your mother,' and 'He that speaks evil of father or mother, let him surely die,'
Matthew 23:13
"But woe to you, scribes and Pharisees, hypocrites! because you shut up the Kingdom of Heaven against men; for ye do not enter, neither do ye suffer those who are entering in to enter.
Acts 23:8
For the Sadducees say that there is no resurrection, nor angel, nor spirit; but the Pharisees acknowledge both.