The Lord frequently uses comparison and contrast to provide insight for discovering biblical definitions. For instance, our text verse contrasts the carnal with the spiritual. This truth is not limited to our text as 1 Corinthians 3:1 also sets forth this teaching and contrast. In a related study, the Bible repeatedly contrasts the spirit and flesh (Isaiah 31:3; Matthew 26:41; John 3:6; John 6:63; Galatians 5:17). By considering these truths together, we find that the Lord defined a “carnal mind” (Romans 8:7) as someone who is “in the flesh” (Romans 8:8). Based upon these verses and others, we understand the word carnal to mean that which is earthly, natural, or fleshly.
“Out of the abundance of the heart the mouth speaketh” (Matthew 12:34). As such, the words that proceed from our mouths provide helpful insights into the condition of our hearts. A man can only deceive with his words for so long; eventually, his speech exposes the reality of his heart's condition. The Bible reinforces this truth when it says, “the words of the pure are pleasant words” (Proverbs 15:26). The Bible also identifies words of praise to God as “pleasant” words (Psalm 135:3; Psalm 147:1). Impure words manifest an unpleasantness. Whereas, a pure heart utters pure words and speaks of the Lord and of His goodness.
