The Pentecostal Theological Seminary is dedicated to preparing pastors and training ministerial leaders for global evangelization. Over twelve hundred Seminary graduates serve in strategic locations and lead ministries to fulfill the urgent world-wide mission of the church.
From its inception, the Seminary has shared library resources with Lee University. In the Fall of 1981, the Seminary doubled the holdings in religion with the purchase of 27,000 volumes. The Pentecostal Resource Center houses the William G. Squires Library and serves both the Seminary and Lee University. It is also an archive for the Church of God and the international Pentecostal Research Center. The library currently contains approximately 154,000 volumes. Following the election of Dr. Cecil B. Knight at the 1982 General Assembly as Assistant General Overseer, Dr. Lewis J. Willis was appointed President. The enrollment continued to grow in the Fall.
With the dedication of the Thurman J. Curtsinger Ministry Center on September 28, 1995, the Seminary effectively doubled its campus workspace. This accomplishment speaks to the honor of a noted churchman who endowed the project, to the leadership that has brought it to pass, and to the passion, dedication, and reputation of a highly qualified faculty. In 1997, the Board of Directors, in keeping with the earliest rationale for the school and its unique denominational mission, changed the name of the school to Church of God Theological Seminary.
In May of 1998, Dr. Donald M. Walker, a Seminary alumnus, was selected as President. He and his wife, Jacquelyn, gave themselves tirelessly to secure finances and a record enrollment at the Seminary. President Walker arrived at the Seminary in the middle of the self-study for reaffirmation of accreditation and worked to make this a reality. During his tenure, ATS and SACS reaffirmed the accreditation of the Master of Divinity, Master of Arts in Discipleship and Christian Formation, and the Master of Arts in Church Ministries degrees for ten years, and approved the Doctor of Ministry degree. Along with his wife, they increased endowment scholarships to $6 million, making it possible for more ministers to be fully equipped for ministry in the twenty-first century, and established 3 new endowed chairs.