In the place of devoting your powers to theorizing, Christ has given you a work to do. His commission is, Go through and make disciples of all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost. Before the disciples shall compass the threshold, there is to be the imprint of the sacred name, baptizing the believers in the name of the threefold powers in the heavenly world. The human mind is impressed in this ceremony, the beginning of the Christian life. It means very much. The work of salvation is not a small matter, but so vast that the highest authorities are taken hold of by the expressed faith of the human agency…The three great and glorious heavenly characters are present on the occasion of baptism. All the human capabilities are to be henceforth consecrated powers to do service for God in representing the Father, the Son, and the Holy Ghost upon whom they depend.
– E.G. White MS45: May 14, 1904