For the believers at Ephesus the apostle prayed, “That the God of our Lord Jesus Christ, the Father of glory, may give unto you the _Spirit of wisdom and revelation_ in the knowledge of Him: _the eyes of your understanding being enlightened_; that ye may know what is the hope of His calling, and ... what is the _exceeding greatness_ of His power to us-ward who believe.” Eph. 1:17-19. The ministry of the divine Spirit in enlightening the understanding and opening to the mind the deep things of God’s holy word, was the blessing which Paul thus besought for the Ephesian church. After the wonderful manifestation of the Holy Spirit on the day of Pentecost, Peter exhorted the people to repentance and baptism in the name of Christ, for the remission of their sins; and he said: “Ye shall receive the gift of the Holy Ghost. For the promise is unto you, and to your children, and to all that are afar off, even as many as the Lord our God shall call.” Acts 2:38, 39. In immediate connection with the scenes of the great day of God, the Lord by the prophet Joel has promised a special manifestation of His Spirit. Joel 2:28. This prophecy received a partial fulfilment in the outpouring of the Spirit on the day of Pentecost; but it will reach its full accomplishment in the manifestation of divine grace which will attend the closing work of the gospel. The great controversy between good and evil will increase in intensity to the very close of time. In all ages the wrath of Satan has been manifested against the church of Christ; and God has bestowed His grace and Spirit upon His people to strengthen them to stand against the power of the evil one. When the apostles of Christ were to bear His gospel to the world and to record it for all future ages, they were especially endowed with the enlightenment of the Spirit. But as the church approaches her final deliverance, Satan is to work with greater power. He comes down “having great wrath, because he knoweth that he hath but a short time.” Rev. 12:12. He will work “with all power and signs and lying wonders.” 2 Thess. 2:9. For six thousand years that master-mind that once was highest among the angels of God, has been wholly bent to the work of deception and ruin. And all the depths of satanic skill and subtlety acquired, all the cruelty developed, during these struggles of the ages, will be brought to bear against God’s people in the final conflict. And in this time of peril the followers of Christ are to bear to the world the warning of the Lord’s second advent; and a people are to be prepared to stand before Him at His coming, “without spot, and blameless.” 2 Peter 3:14. At this time the special endowment of divine grace and power is not less needful to the church than in apostolic days.