Sometimes people speak about there being two types of Christians - those who show their faith by holy lives and those who do not. This is not biblical, since true faith transforms lives to be holy. There is no such thing as a carnal Christian. This thinking robs Christians of assurance and fills the church with unbelievers.
The idea of a carnal Christian is foreign to scripture. This idea misrepresents the teaching of scripture. It denies the new covenant by speaking of two groups of Christians, fails to distinguish true saving faith, does not give assurance, and undermines the Lordship of Christ. A carnal Christian does not exist.