"Even now the disciples did not suspect Judas. But they saw that Christ appeared greatly troubled. A cloud settled over them all, a premonition of some dreadful calamity, the nature of which they did not understand. As they ate in silence, Jesus said, “Verily I say unto you, that one of you shall betray Me.” At these words amazement and consternation seized them. They could not comprehend how any one of them could deal treacherously with their divine Teacher. For what cause could they betray Him? and to whom? Whose heart could give birth to such a design? Surely not one of the favored twelve, who had been privileged above all others to hear His teachings, who had shared His wonderful love, and for whom He had shown such great regard by bringing them into close communion with Himself! DA 654.1"
"And as they did eat, he said, Verily I say unto you, that one of you shall betray me."
EGW directly quotes Matthew 26:21.
As they realized the import of His words, and remembered how true His sayings were, fear and self-distrust seized them. They began to search their own hearts to see if one thought against their Master were harbored there. With the most painful emotion, one after another inquired, “Lord, is it I?” But Judas sat silent. John in deep distress at last inquired, “Lord, who is it?” And Jesus answered, “He that dippeth his hand with Me in the dish, the same shall betray Me. The Son of man goeth as it is written of Him: but woe unto that man by whom the Son of man is betrayed! it had been good for that man if he had not been born.” The disciples had searched one another's faces closely as they asked, “Lord, is it I?” And now the silence of Judas drew all eyes to him. Amid the confusion of questions and expressions of astonishment, Judas had not heard the words of Jesus in answer to John's question. But now, to escape the scrutiny of the disciples, he asked as they had done, “Master, is it I?” …
"And they were exceeding sorrowful, and began every one of them to say unto him, Lord, is it I?"
The EGW passage directly quotes and expands upon the biblical verse, elaborating on the disciples' reactions and Judas's behavior.
"In surprise and confusion at the exposure of his purpose, Judas rose hastily to leave the room. “Then said Jesus unto him, That thou doest, do quickly.... He then having received the sop went immediately out: and it was night.” Night it was to the traitor as he turned away from Christ into the outer darkness. DA 654.3"
"He then having received the sop went immediately out: and it was night."
The EGW passage directly quotes John 13:30 and provides commentary on its significance, particularly the symbolism of 'night'.
"Until this step was taken, Judas had not passed beyond the possibility of repentance. But when he left the presence of his Lord and his fellow disciples, the final decision had been made. He had passed the boundary line. DA 654.4"
"For it is impossible for those who were once enlightened, and have tasted of the heavenly gift, and were made partakers of the Holy Ghost, And have tasted the good word of God, and the powers of the world to come, If they shall fall away, to renew them again unto repentance; seeing they crucify to themselves the Son of God afresh, and put him to an open shame."
The EGW passage echoes the sentiment of Hebrews 6:4-6 regarding the possibility of irreversible decisions and the difficulty of repentance after a certain point. While not a direct quote, the theme of passing a point of no return is present in both.