Who Is the Holy Spirit? with Dr. Sinclair Ferguson. Join us as we trace the work of the Holy Spirit throughout the pages of Scripture, shedding light on the vital role played by the third Person of the Trinity in redemptive history. This Week Lesson 6 / 12: The Sustainer. The picture of Jesus on the cross at Calvary is the loneliest portrait of a man in the history of the world. He hung dying, incurring the wrath of His Father as He bore the sins of the world. These sins were not His own, and never before this moment had Christ been prevented from communing with His heavenly Father. Yet the Holy Spirit sustained Jesus through His work of atonement, preserving Christ just as He had done from the moment of Christ’s conception. In this lesson, Dr. Ferguson reveals that this same Spirit, who fortified Jesus to atone for the sins of His people, dwells in us today—an unspeakable privilege that should unite the church in humility, thankfulness, and love. Class led by Pastor Jonathan.