Christians heart must be circumcised by God's word befpre they can become sanctified christians. I will lile to analyse the categories of Christians that we have:-
Bible reading : Roman 2 vs 17- 29
Christians by mouth Romans 2 vs. 17- 23:-
The Jews took great pride in owning God, having His holy laws, knowing His will, judged what was acceptable to Him, guided and instructed others; but sadly broke the laws by their lifestyles. They stole, they myrdered, worship idols and commited adultery etc. Anyone who professes to be a Christian and still live a sinful life is a christian by mouth and God does not recognize Him.
Misleading Christians (Romans 2 vs 24- 27):-
The Jews of Paul's days were plunged into various conspicuous evil practises that brought avenues of mockery and despise to God. They were basking in yheir jewish status, engrossed with unrighteousness and misleading the gentiles they were to mentor. Todays Christian should not allow any avenue of mockery on their God. Tjis is possible when they watch their characters and conform them to God's will.
Genuine Christians (Romans 2 28- 29):-
A genuine christian is someone whose heart has been circumcised by God's law and whose lifestyle glorified God. Moreover, a genuine christian's heart must have been purged of sin and has Jesus reigning as the Lord of his life. He must daily live by God's word.