Romans 3:27-31

Romans 3:27-28
In what way are you boasting or proud of your spiritual position? Are you boasting about superior knowledge due to personal Bible study? A position in your Church? A Spiritual gift?
How are you comparing your walk with God to that of others and possibly looking down on them?
How is your theological or doctrinal pride blinding your to inconsistencies in your belief system?

Romans 3:29-30
Who are you believing for your salvation? Christ and His atoning sacrifice for you or is it something else?
What type of faith do you have? Is it saving faith, involving content, love, and commitment? Or is it mere intellectual assent to the facts of the Gospel?
Is your faith the type that causes you to follow Christ in obedience or are you still trying to live according to the dictates of your own will?

Romans 3:31
What system of rules are you trying to maintain in addition to faith in Christ?
What moral laws of God are you ignoring, thinking that the law is no longer important?