Part 1:

 Daniel’s prayers were grounded in Scripture – vv1-2
Daniel’s prayers were grounded in faith – vv3

Part 2:

3.  Daniel’s prayers exalted God – vv4

4.  Daniel’s prayers openly confessed sin – vv5-14

5.  Daniel’s prayer requests were based on God’s character and glory – vv15-19

Part 3:

Daniel’s prayers were grounded in Scripture – vv1-2

Daniel’s prayers were grounded in faith – vv3 (Part 1)
Daniel’s prayers exalted God – vv4
Daniel’s prayers openly confessed sin – vv5-14