427.1 While they were waiting at the foot of the mountain, a father had brought to them his son, to be delivered from a dumb spirit that tormented him. Authority over unclean spirits, to cast them out, had been conferred on the disciples when Jesus sent out the twelve to preach through Galilee. As they went forth strong in faith, the evil spirits had obeyed their word. Now in the name of Christ they commanded the torturing spirit to leave his victim; but the demon only mocked them by a fresh display of his power. The disciples, unable to account for their defeat, felt that they were bringing dishonor upon themselves and their Master. And in the crowd there were scribes who made the most of this opportunity to humiliate them. Pressing around the disciples, they plied them with questions, seeking to prove that they and their Master were deceivers. Here, the rabbis triumphantly declared, was an evil spirit that neither the disciples nor Christ Himself could conquer. The people were inclin…
"Then he called his twelve disciples together, and gave them power and authority over all devils, and to cure diseases."
EGW refers to the authority given to the disciples, which is directly stated in Luke 9:1.
"And I brought him to thy disciples, and they could not cure him."
Both passages refer to the disciples' inability to heal a boy possessed by a demon.
"But suddenly the accusations ceased. Jesus and the three disciples were seen approaching, and with a quick revulsion of feeling the people turned to meet them. The night of communion with the heavenly glory had left its trace upon the Saviour and His companions. Upon their countenances was a light that awed the beholders. The scribes drew back in fear, while the people welcomed Jesus. DA 427.3"
"And was transfigured before them: and his face did shine as the sun, and his raiment was white as the light."
Both passages describe Jesus's face shining after the transfiguration, creating a sense of awe and reverence.
"As if He had been a witness of all that had occurred, the Saviour came to the scene of conflict, and fixing His gaze upon the scribes inquired, “What question ye with them?” DA 427.4"
"And he asked the scribes, What question ye with them?"
EGW directly quotes the verse from Mark 9:16.
"But the voices so bold and defiant before were now silent. A hush had fallen upon the entire company. Now the afflicted father made his way through the crowd, and falling at the feet of Jesus, poured out the story of his trouble and disappointment. DA 427.5"
"And they brought him unto him: and when he saw him, straightway the spirit tare him; and he fell on the ground, and wallowed foaming."
Both passages describe a father approaching Jesus with a problem. The EGW passage focuses on the father's story, while the Mark passage focuses on the boy's immediate reaction. The connection is thematic.