“For our gospel came not unto you in word only, but also in power, and in the Holy Ghost, and in much assurance.” 1 Thessalonians 1:5. (CTr 365.1)

It is the truth as it is in Jesus that quickens the conscience and transforms the mind, for it is accompanied to the heart by the Holy Spirit. Without the enlightenment of the Spirit of God, we shall not be able to discern truth from error, and shall fall under the masterful temptations and deceptions that Satan will bring upon the world. We are near the close of the controversy between the Prince of light and the prince of darkness, and soon the delusions of the enemy will try our faith, of what sort it is.... (CTr 365.2)

But though the prince of darkness will work to cover the earth with darkness, and with gross darkness the people, the Lord will manifest His converting power. A work is to be accomplished in the earth similar to that which took place at the outpouring of the Holy Spirit in the days of the early disciples, when they preached Jesus and Him crucified. Many will be converted in a day, for the message will go with power. It can then be said: “Our gospel came not unto you in word only, but also in power, and in the Holy Ghost.”(1 Thessalonians 1:5)... (CTr 365.3)

The work of the Holy Spirit is immeasurably great. It is from this source that power and efficiency come to the worker for God; and the Holy Spirit is the Comforter, as the personal presence of Christ to the soul. Any person who looks to Christ in simple, childlike faith is made a partaker of the divine nature through the agency of the Holy Spirit. When led by the Spirit of God, Christians may know that they are made complete in Him who is the head of all things. As Christ was glorified on the day of Pentecost, so will He again be glorified in the closing work of the gospel, when He shall prepare a people to stand the final test in the closing conflict of the great controversy.... (CTr 365.4)

The people of God are to be called out from their association with worldlings and evildoers to stand in the battle for the Lord against the powers of darkness. When the earth is lightened with the glory of God, we shall see a work similar to that which was wrought when the disciples, filled with the Holy Spirit, proclaimed the power of a risen Saviour. [After] the light of heaven penetrated the darkened minds of those who had been deceived by the enemies of Christ, the false representation of Him was rejected, for through the efficiency of the Holy Spirit they now saw Him exalted to be a Prince and Saviour, to give repentance unto Israel, and remission of sins.—Manuscript 143, 1901. (CTr 365.5)