Romans 2:17-29

17-20: Who Does the Jew Think He Is?
17 - He thinks his ancestral blood justifies him
18-His Law justifies him
19- His light justifies him
20 - His superiority justifies him

21-24: What Does God Think of the Jew?
21 - God says they teach others but not themselves
21 - They preach against theft but steal
22 - They speak against idolatry and rob temples
22 - They speak against adultery and commit it
23 - They boast of the Law and break it
24 - They despise God by being hypocrites

25-29: Who is Purified by Circumcision
25 - Only those who keep the Law
26 - Obeyers would be considered justified
27 - Obeyers would condemn disobeyers
28 - True Jews are not purified externally

Conclusion:
We can’t be justified by our own blood, rules, light, nor superiority.
We can’t be justified and live hypocritically.
We can’t be justified by external flesh but only by internal heart and Spirit