Here is my mind map of this passage:

The scrolls is here.
And here are a few questions of my own:

How does Paul describe what a Jew does?
How does he describe who a Jew is?
How does he describe their teaching?
What good deeds does Paul explicitly mention for the Jews?
Which of their hypocrisies does Paul explicitly mention?
What laws do they both teach and break?
What is the consequence of this hypocrisy?
When is circumcision profitable?
When is uncircumcision profitable?
How does one see inward circumcision?
Who will ultimately reward the truly circumcised? What implications does that have for us?
How will circumcision relate to obedience in judgement?
How does Paul compare two definitions of being a Jew?
What are the implications of inward/outward circumcision?