"In all that Christ said to His disciples, there was something with which, in heart, Judas disagreed. Under his influence the leaven of disaffection was fast doing its work. The disciples did not see the real agency in all this; but Jesus saw that Satan was communicating his attributes to Judas, and thus opening up a channel through which to influence the other disciples. This, a year before the betrayal, Christ declared. “Have not I chosen you twelve,” He said, “and one of you is a devil?” John 6:70 . DA 720.1"
"Jesus answered them, Have not I chosen you twelve, and one of you is a devil?"
Ellen White directly references John 6:70 in this passage.
"Yet Judas made no open opposition, nor seemed to question the Saviour's lessons. He made no outward murmur until the time of the feast in Simon's house. When Mary anointed the Saviour's feet, Judas manifested his covetous disposition. At the reproof from Jesus his very spirit seemed turned to gall. Wounded pride and desire for revenge broke down the barriers, and the greed so long indulged held him in control. This will be the experience of everyone who persists in tampering with sin. The elements of depravity that are not resisted and overcome, respond to Satan's temptation, and the soul is led captive at his will. DA 720.2"
"Then when lust hath conceived, it bringeth forth sin: and sin, when it is finished, bringeth forth death."
The EGW passage illustrates the principle described in James 1:15. It shows how Judas's covetousness, when indulged, led to sin and ultimately spiritual death. The passage in DA is an example of the principle in James.
"But Judas was not yet wholly hardened. Even after he had twice pledged himself to betray the Saviour, there was opportunity for repentance. At the Passover supper Jesus proved His divinity by revealing the traitor's purpose. He tenderly included Judas in the ministry to the disciples. But the last appeal of love was unheeded. Then the case of Judas was decided, and the feet that Jesus had washed went forth to the betrayer's work. DA 720.3 Judas reasoned that if Jesus was to be crucified, the event must come to pass. His own act in betraying the Saviour would not change the result. If Jesus was not to die, it would only force Him to deliver Himself. At all events, Judas would gain something by his treachery. He counted that he had made a sharp bargain in betraying his Lord. DA 720.4"
"But Jesus said unto him, Judas, betrayest thou the Son of man with a kiss?"
The EGW passage elaborates on the events surrounding Judas's betrayal and Jesus's interaction with him, which is directly related to the event described in Luke 22:48. It provides additional context and interpretation of Judas's motives and Jesus's actions.
"Judas did not, however, believe that Christ would permit Himself to be arrested. In betraying Him, it was his purpose to teach Him a lesson. He intended to play a part that would make the Saviour careful thenceforth to treat him with due respect. But Judas knew not that he was giving Christ up to death. How often, as the Saviour taught in parables, the scribes and Pharisees had been carried away with His striking illustrations! How often they had pronounced judgment against themselves! Often when the truth was brought home to their hearts, they had been filled with rage, and had taken up stones to cast at Him; but again and again He had made His escape. Since He had escaped so many snares, thought Judas, He certainly would not now allow Himself to be taken. DA 720.5"
"And said unto them, What will ye give me, and I will deliver him unto you? And they covenanted with him for thirty pieces of silver."
The EGW passage provides an interpretation of Judas's motives for betraying Jesus, suggesting he didn't believe Jesus would be arrested. This relates to the agreement for thirty pieces of silver in Matthew 26:15, as it offers a possible explanation for Judas's actions.