MW-BT: Mark 7:1-23
This stuff is in scripture for a reason folks. The issues Jesus had with the Pharisees are the same issues we deal with today. This is how the Pharisees used tradition as a way of missing out on the heart of God and neglecting to obey scripture. There's some really interesting parallels between the Pharisees and Catholicism. The Pharisees had the "Oral Torah" and Catholicism has "Sacred Tradition". This is a verse by verse Bible study through the whole gospel of Mark.
https://youtu.be/WCKrLlH-v4A
Mark 7:1The Lexham English Bible
And the Pharisees and some of the scribes who had come from Jerusalem gathered to him.