“If we live in the Spirit, let us also walk in the Spirit.”
“There is an obvious difference in the character and quality of the daily life of Christians. This difference is acknowledged in the New Testament. The Apostle Paul, by the Spirit, has divided the whole human family into three groups:
The natural man who is unregenerate, or unchanged spiritually;
The carnal man who is a ‘babe in Christ’ and walks ‘as a man’;
The spiritual man
“These groups are classified by the Apostle according to their ability to understand and receive a certain body of Truth, which is of things revealed unto us by the [Holy] Spirit. Men are vitally different one from the other as regards the fact of the new birth and the life of power and blessing; but their classification is made evident by their attitude toward things revealed.
“Men are classified according to their ability to receive ‘the deep things of God’ (I Corinthians 2:10). Into these ‘deep things of God’ no unaided man can go. An unaided man may enter freely into the things of his fellow man because of ‘the spirit of man which is in him.’
“…divine revelation is transmitted to us in words which the Holy Spirit teaches, as the Apostle goes on to state: ‘Which things also we speak, not in the words which man’s wisdom teacheth, but which the Holy Spirit teacheth; comparing spiritual things with spiritual’ (I Corinthians 2:13). God’s Book is a Book of words and the very words which convey ‘man’s wisdom’ are used to convey things which ‘eye hath not seen, nor ear heard, neither have entered into the heart of man’ (I Corinthians 2:9).
“Nevertheless, unaided man cannot understand these ‘deep things of God,’ though couched in words most familiar to man, except as they are revealed by the Spirit. Just so, in coming to know these revealed things, progress is made only as one spiritual thing is compared with another spiritual thing. Spiritual things must be communicated by spiritual means. Apart from the Spirit there can be no spiritual understanding.”
* He That is Spiritual, Chapter 1, by Lewis Sperry Chafer