carnal
Compare (1 Corinthians 3:1); (1 Corinthians 3:4).
"Carnal" meaning "fleshly" is Paul's word for the Adamic nature, and for the believer who "walks," that is, lives, under the power of it. "Natural" is his characteristic word for the unrenewed man (1 Corinthians 2:14) as "spiritual" designates the renewed man who walks in the Spirit; (1 Corinthians 3:1); (Galatians 6:1).
sin
Sin
( See Scofield) - (Romans 5:21).