by my friend Mike Corrothers:
"Can a true Christian be carnal? In answering this question, let’s first define the term "carnal." The word "carnal" is translated from the Greek word sarkikos, which literally means "fleshly." This descriptive word is seen in the context of Christians in 1 Corinthians 3:1-3. In this passage, the apostle Paul is addressing the readers as "brethren," a term he uses almost exclusively to refer to other Christians; he then goes on to describe them as "carnal." Therefore, we can conclude that Christians can be carnal. The Bible is absolutely clear that no one is sinless (1 John 1:8). Every time we sin, we are acting carnally.
The key thing to understand is that while a Christian can be, for a time, carnal, a true Christian "will not remain carnal for a lifetime." Some have abused the term or idea of a "carnal Christian" by saying that it is possible for people to come to faith in Christ and then proceed to live the rest of their lives in a completely carnal manner, with no evidence of being born again or a new creation (2 Corinthians 5:17). Such a concept is completely unbiblical and unGodly and would indicate a person in this state is not truly born again. James 2 makes it abundantly clear that genuine faith will always result in good works. Ephesians 2:8-10 declares that while we are saved by grace alone through faith alone, that salvation will result in works. Can a Christian, in a time of failure and/or rebellion, appear to be carnal? Yes. Will a true Christian remain carnal? No absolutely not !!
Dictionary definition of carnal:
1. pertaining to or characterized by the flesh or the body, its passions and appetites; sexual, sensual: carnal pleasures.
2. not spiritual; merely human; temporal; worldly: a man of secular, rather carnal, leanings.
Synonyms
1. bodily, lustful, lecherous, lascivious, libidinous, concupiscent. Carnal, sensual, fleshly, animal all refer to bodily rather than rational or spiritual aspects of humans. Carnal, although it may refer to the body as opposed to the spirit, often refers to sexual needs or urges: carnal cravings, attractions, satisfactions. Sensual implies a suggestion of eroticism: sensual eyes; a sensual dance; it may also refer to experience of the senses: a sensual delight. Fleshly may refer to any physical need or appetite, sex as well as hunger and thirst: the fleshly sin of gluttony; fleshly yearnings. Animal refers to sexual appetites in a censorious way only; it may also describe pleasing or admirable physical characteristics or appearance: animal lust; to move with animal grace. 2. earthly, natural."
Source: http://www.facebook.com/ref=tn_tnmn#!/Revelation21.8
