Duncan Campbell (1898 - 28 March 1972) was a Scottish preacher, who led the Hebrides Revival, a mid-20th century religious revival in the Scottish Hebrides. It is interesting to note the perspective of this man even at a time when methods were generally mild compared to these days and when a Christian experience similar to the apostles in the early church was still observable.
Duncan Campbell wrote in 1956 “The Price and Power of Revival”...
“These are days of much activity in the field of church and mission work, but we do well to remember that no amount of activity in the King’s service will make up for neglect of the King Himself. I do not believe that the devil is greatly concerned about getting between us and work: his great concern is getting between us and God. Many a Christian worker has buried his spirituality in the grave of his activity. It is possible to be doing a great deal in the name of religion, and yet not possible for it to be acceptable to God. The word of God declares: “Not by might, nor by power, but by my Spirit, saith the Lord” (Zechariah 4:6)...We have introduced unspiritual ways and unscriptural activities in the field of evangelism, which, to my mind, threatens the very life of the church. “I have proved,” said Mrs Penn-Lewis, “That the presence of God is more attractive than Spiritual Entertainment. The truth is that we cannot compete with the world. We must win by the force of something far above competition, and this is the presence and power of the Holy Spirit.” Glover said, “The early church conquered because the early church out-thought, out-lived and out-died the pagan.” That is, they showed a quality of life that could only be explained in terms of the Holy Spirit. Their work and witness leave us with no explanation apart from God. How much we need to return to spiritual sanity that leads to repentance and true humility ...”
The Holy Spirit still delivers from all bondage, addictions and cures us from the love of the world and all its glamour and attractions. Spiritual entertainment will keep the audience applauding for performance while hearts still hurt and ache for the joy of the Lord ...until the enemy of our soul strikes a final blow on an exposed soul that knows little of spiritual weapons that are not in any way carnal.
I also remember the words of an uncommon hymn...
Once it was the blessing, now it is the Lord;
Once it was the feeling, now it is His Word;
Once His gift I wanted, now, the Giver own;
Once I sought for healing, now Himself alone.
All in all forever, Only Jesus I'll sing;
Everything is in Jesus, and Jesus is everything.
Once 'twas painful trying, now 'tis perfect trust;
Once a half salvation, now the uttermost;
Once 'twas ceaseless holding, now He holds me fast;
Once 'twas constant drifting, now my anchor's cast.
Once 'twas busy planning, now 'tis trustful prayer;
Once 'twas anxious caring, now He has the care;
Once 'twas what I wanted, now what Jesus says;
Once 'twas constant asking, now 'tis ceaseless praise.
Once it was my working, His it hence shall be;
Once I tried to use Him, now He uses me;
Once the pow'r I wanted, now the Mighty One;
Once for self I labored, now for Him alone.
Matthew 3  Bring forth therefore fruits meet for repentance:  And think not to say within yourselves, We have Abraham to our father: for I say unto you, that God is able of these stones to raise up children unto Abraham.
Matthew 7  Enter ye in at the strait gate: for wide is the gate, and broad is the way, that leadeth to destruction, and many there be which go in thereat:  Because strait is the gate, and narrow is the way, which leadeth unto life, and few there be that find it.  Beware of false prophets, which come to you in sheep's clothing, but inwardly they are ravening wolves.  Ye shall know them by their fruits. Do men gather grapes of thorns, or figs of thistles?  Even so every good tree bringeth forth good fruit; but a corrupt tree bringeth forth evil fruit.  A good tree cannot bring forth evil fruit, neither can a corrupt tree bring forth good fruit.  Every tree that bringeth not forth good fruit is hewn down, and cast into the fire.  Wherefore by their fruits ye shall know them.