Do you call yourself a Christian?

".. you depend on the Law and boast about God; you know what God wants you to do, and you have learnt from the Law to choose what is right; you are sure that you are a guide for the blind, a light for those who are in darkness, an instructor for the foolish, and a teacher for the ignorant. You are certain that in the Law you have the full content of knowledge and of truth.

• You teach others — why don't you teach yourself?
• You preach, “Do not steal” — but do you yourself steal?
• You say, “Do not commit adultery” — but do you commit adultery?
• You detest idols — but do you rob temples?
• You boast about having God's law — but do you bring shame on God by breaking his law?"

(Romans 2.17-23 GNB)

I should not be arrogant and hypocritical. I carry the banner of Christ - my thoughts, words, and deeds should be consistent with Christ.

See: Whitewashed tombs (selective self-righteousness)