The Holy Spirit and His Gifts Study Course, A book by Kenneth E. Hagin. The apostle Paul said, “Now concerning spiritual gifts, brethren, I would not have you ignorant” (1 Cor. 12:1). As you learn about the ministry of the Holy Spirit, you can become a more effective witness for the Lord Jesus Christ! Explaining the twofold work in a believer’s life, this study course provides a comprehensive study of the nine gifts of the Holy Spirit.