"When Christ is formed within, the hope of glory, then the truth of God will so act upon the natural temperament that its transforming power will be seen in changed characters. You will not then, by revealing an unsanctified heart and temper, turn the truth of God into a lie before any of your pupils. Nor will you, by manifesting a selfish, un-Christlike spirit, give the impression that the grace of Christ is not sufficient for you at all times and in all places. You will show that the authority of God over you is not in name only, but in reality and truth. CT 194.1"
"To whom God would make known what is the riches of the glory of this mystery among the Gentiles; which is Christ in you, the hope of glory:"
The EGW passage speaks about Christ being formed within as the hope of glory and the transforming power of truth, which is a clear echo of Colossians 1:27, which states 'Christ in you, the hope of glory.'