And the Pharisees
Sit on Moses’ seat.
They teach you.
But they do not practice
What they teach.”
λέγων Ἐπὶ τῆς Μωϋσέως καθέδρας ἐκάθισαν οἱ γραμματεῖς καὶ οἱ Φαρισαῖοι.
πάντα οὖν ὅσα ἐὰν εἴπωσιν ὑμῖν ποιήσατε καὶ τηρεῖτε, κατὰ δὲ τὰ ἔργα αὐτῶν μὴ ποιεῖτε· λέγουσιν γὰρ καὶ οὐ ποιοῦσιν.
There is something similar in Mark, chapter 12:38, who only talked about the Scribes and not the Pharisees. In Luke, chapter 20:45, Jesus was only speaking to his disciples. Jesus said that the Scribes and the Pharisees sat on Moses’ seat (λέγων Ἐπὶ τῆς Μωϋσέως καθέδρας ἐκάθισαν οἱ γραμματεῖς καὶ οἱ Φαρισαῖοι). In other words, they knew the Torah, the Law of Moses, so that they spoke with authority. Notice the importance of the seat or “καθέδρας” that later had such an important role in the Roman Catholic interpretation of the Pope or Bishop of Rome on his seat, speaking “ex cathedra” in an official capacity. Thus, the Pharisees and Scribes were on this seat of Moses, so that they had the proper authority to teach. The result was that the people should do all the things that the Scribes and Pharisees taught them (πάντα οὖν ὅσα ἐὰν εἴπωσιν ὑμῖν ποιήσατε καὶ τηρεῖτε). However, they were not practicing or doing what they were teaching (λέγουσιν γὰρ καὶ οὐ ποιοῦσιν), so that you were not to follow or do their actions (τὰ ἔργα αὐτῶν μὴ ποιεῖτε). Jesus accepted their teachings but not their actions.