The term "Trinity" as a doctrinal label is not directly used in Ellen G. White's published books. However, her writings do affirm the threefold nature of the Godhead—Father, Son, and Holy Spirit—especially in the context of baptism and the work of salvation. Here are some key references for confirmation:
1. Threefold Name in Baptism:
"Those who are baptized in the threefold name of the Father, the Son, and the Holy Spirit, at the very entrance of their Christian life declare publicly that they have forsaken the service of Satan and have become members of the royal family, children of the heavenly King." (Testimonies for the Church, Vol. 6, p. 91.3)
2. The Great Commission:
"Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost..." (Spiritual Gifts, Vol. 3, p. 9.3)
3. Christ and the Father:
"Christ the Word, the Only Begotten of God, was one with the eternal Father,—one in nature, in character, and in purpose,—the only being in all the universe that could enter into all the counsels and purposes of God." (The Great Controversy, p. 493.1)
4. The Holy Spirit as Divine Agency:
"The Holy Spirit is at work. Divine agencies are combining with the human in reshaping the character according to the perfect pattern..." (Testimonies for the Church, Vol. 6, p. 129.2)
Summary: While Ellen White does not use the word "Trinity," her writings clearly present the unity and distinct roles of the Father, Son, and Holy Spirit. She affirms their cooperation in the plan of salvation and the Christian life.
Academic References:
- White, E. G. (1900). Testimonies for the Church, Vol. 6.
- White, E. G. (1864). Spiritual Gifts, Vol. 3.
- White, E. G. (1911). The Great Controversy.
If you need more specific statements or further clarification, let me know!