“There are three living persons of the heavenly trio; in the name of these three great powers - the Father, the Son, and the Holy Spirit - those who receive Christ by living faith are baptised.” — (Special Testimonies, Series B, No. 7, pp. 62, 63, 1905) — Evangelism p. 615.1
The Trinitarian mindset assumes that a heavenly trio must be three beings. But says who? A trinity is ALWAYS three beings, but a trio is NOT. So let SOP explain SOP rather than assume.
Who does Ellen White say is the third person in what she called the Heavenly Trio?
“The HOLY SPIRIT is the SPIRIT of CHRIST, which is sent to all men to give them sufficiency,” — (E.G. White, 14MR 84.3)
“We want the HOLY SPIRIT, which is JESUS CHRIST.” — (E. G. White, Lt66, April 10, 1894)
“but it is the leaven of the SPIRIT of JESUS CHRIST, which is sent down from heaven, called the HOLY GHOST,” — (E.G. White, Ms36-1891)
Many fail to realize that the “Spirit of Christ” can function like a person separate to Himself so it is like it is “another” person, though not a literal person of course. So we do have a heavenly trio, but not a heavenly trinity.
Letting SOP explain SOP, here is the heavenly trio according to Ellen White.
“They have one God and one Saviour; and one Spirit--the Spirit of Christ--” — (E.G. White, 9T 189.3, 1909)
ONE + ONE + ONE = “the Spirit of Christ.”
Ellen White taught that the Father and Son are one in Spirit and that the SPIRIT OF GOD comes to us through His only begotten Son. Thus she called the HOLY SPIRIT the SPIRIT OF CHRIST.