Many Christians remain carnal, but God has not only called us to grow, but He has provided all of the power and the conditions necessary for growth.
But many sadly remain babes in Christ, whereas they should have gone on to 'perfection, attaining unto the full grown man'.
Sometimes the blame lies with preaching only a partial gospel, which makes salvation to consist solely of the hope of heaven and the pardon of forgiveness. If holiness is preached, it is not preached from the perspective that it is Christ who is our Sanctification and who gives the ability to walk in holiness, and that the indwelling of the Holy Spirit is necessary and that he must not be grieved.
Sometimes if these things are taught, it is the Christian who is unwilling to deny self so that the flesh can be crucified. God can only work in those who are willing to give themselves up to Him totally.
Christians will generally give up MOST of themselves but not entirely. The remaining sin will show that they are yet carnal. With the Corinthians, the sin remaining was their jealousy and strife. When Christians are not willing to give up the sin of selfishness and temper, wanting to retain the liberty of giving in to and excusing the loosing of control of their feelings and loosing control of the tongue with words pouring forth pronouncing their own judgements and speaking words that are not perfect in love-then they remain carnal.
This grieves the Holy Spirit, and He will depart leaving behind a conscience that will not witness that we are pleasing to God. God is love so let us put on love which is the 'bond of perfectness'.
The Corinthians were proud of their wisdom, but as the Rev. Andrew Murray says in 'The Spirit of Christ'-"There was nothing in His teaching that they would not have been able to comprehend with the understanding. But the real spiritual entering into the truth in power, so as to possess it and be possessed by it, so as to have not only the thought but the very thing the words speak of, this only the Holy Spirit can give. And He gives it to the spiritually minded man. The teaching and leading of the Holy Spirit is given to be obedient and is preceded by the dominion of the Spirit in mortifying the deeds of the body (Rom8v13-14)
Spiritual knowledge is not deep thought but living contact entering into and being united to the truth as it is in Jesus, as a spiritual reality. The Spirit teaches, combining spiritual things with spiritual. Into a spiritual mind He works spiritual truth. It is not even the earnest desire to know the truth that fits a man for the Spirits teaching; it is a life, yielded to Him in waiting dependence and full obedience that receives the spiritual wisdom and understanding.
As long as we are giving way to the flesh we are incapable of receiving spiritual insight into truth. We may 'know all mysteries and have all knowledge' without love, the love which the Spirit works in the inner life, it is only a 'knowledge that puffeth up, it profiteth nothing"
The carnal life makes the knowledge carnal"
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And this knowledge, again being held in the 'fleshy mind' strengthens the 'religion of the flesh' of self effort and confidence and trust in self. The truth so received has no power to make us free and to renew our minds into the mind of Christ.
This is the reason that there is so much Bible knowledge but no spiritual result in a life of holiness.
EVERY CHRISTIAN IS CALLED TO BE A SPIRITUAL MAN.
And why does this not happen in the majority of cases? It is because God gives man the choice of refusing or co-operating with Him.
"As sure as the natural man can become regenerate man, so can a regenerate man who is still carnal, become spiritual" A. Murray.
It is the Holy Spirit alone who makes the man spiritual, and He does it when the whole man, spirit soul and body is yielded up to Him in willing obedience to be under His control, to be moved and guided only by Him and no more by our own thoughts and desires. Ant the first step is by faith.
As we are filled by faith in what HE CAN DO, WE THEN MUST GIVE UP ALL WORKS OF THE FLESH in the sphere of religion. All confidence in the flesh all self effort and self struggling, all thoughts that we can succeed if we only try harder must be rooted out and the soul brought into the captivity and subjection of Jesus Christ.
By walking in obedience and by faith we can have confidence that the Holy Spirit will do the work in us and we will trust that we will, through Him have the ability and strength needed to walk in the Spirit, as we yield ourselves up to His Mighty working in us so that ALL we do will be pleasing in the sight of God allowing us to dwell in the house of the Lord forever.
"Believe! Rise from the disciple stage which savoureth not the things that be of God, to the spiritual Pentecostal condition" Saphir.
"The lesson that true spiritual insight into God's Word depends upon a spiritual life is one of great solemnity for all ministers and teachers of the Word" A Murray.