At the time of their deliverance from Egypt, the children of Israel ate the Passover supper standing, with their loins girded, and with their staves in their hands, ready for their journey. The manner in which they celebrated this ordinance harmonized with their condition; for they were about to be thrust out of the land of Egypt, and were to begin a painful and difficult journey through the wilderness. But in Christ's time the condition of things had changed. They were not now about to be thrust out of a strange country, but were dwellers in their own land. In harmony with the rest that had been given them, the people then partook of the Passover supper in a reclining position. Couches were placed about the table, and the guests lay upon them, resting upon the left arm, and having the right hand free for use in eating. In this position a guest could lay his head upon the breast of the one who sat next above him. And the feet, being at the outer edge of the couch, could be washed by on…
"And thus shall ye eat it; with your loins girded, your shoes on your feet, and your staff in your hand; and ye shall eat it in haste: it is the Lord’s passover."
EGW directly references and explains Exodus 12:11, contrasting the original Passover meal with the customs during Christ's time.
"sin and death, could represent the “Lamb without blemish and without spot.” 1 Peter 1:19 . DA 653.2"
"But with the precious blood of Christ, as of a lamb without blemish and without spot:"
EGW directly quotes and references 1 Peter 1:19.
"“And as they were eating, Jesus took bread, and blessed it, and brake it, and gave it to the disciples, and said, Take, eat; this is My body. And He took the cup, and gave thanks, and gave it to them, saying, Drink ye all of it; for this is My blood of the new testament, which is shed for many for the remission of sins. But I say unto you, I will not drink henceforth of this fruit of the vine, until that day when I drink it new with you in My Father's kingdom.” DA 653.3"
"And as they were eating, Jesus took bread, and blessed it, and brake it, and gave it to the disciples, and said, Take, eat; this is my body. And he took the cup, and gave thanks, and gave it to them, saying, Drink ye all of it; For this is my blood of the new testament, which is shed for many for the remission of sins. But I say unto you, I will not drink henceforth of this fruit of the vine, until that day when I drink it new with you in my Father’s kingdom."
EGW directly quotes Matthew 26:26-29.
"Judas the betrayer was present at the sacramental service. He received from Jesus the emblems of His broken body and His spilled blood. He heard the words, “This do in remembrance of Me.” And sitting there in the very presence of the Lamb of God, the betrayer brooded upon his own dark purposes, and cherished his sullen, revengeful thoughts. DA 653.4"
"Wherefore whosoever shall eat this bread, and drink this cup of the Lord, unworthily, shall be guilty of the body and blood of the Lord."
While not a direct quote, the EGW passage discusses Judas partaking of the Lord's Supper unworthily, which is the central theme of 1 Corinthians 11:27.
"At the feet washing, Christ had given convincing proof that He understood the character of Judas. “Ye are not all clean” ( John 13:11 ), He said. These words convinced the false disciple that Christ read his secret purpose. Now Christ spoke out more plainly. As they were seated at the table He said, looking upon His disciples, “I speak not of you all: I know whom I have chosen: but that the scripture may be fulfilled, He that eateth bread with Me hath lifted up his heel against Me.” DA 653.5"
"I speak not of you all: I know whom I have chosen: but that the scripture may be fulfilled, He that eateth bread with me hath lifted up his heel against me."
EGW directly quotes John 13:18.
"For he knew who should betray him; therefore said he, Ye are not all clean."
Ellen White directly references John 13:11 in this passage.