"angels of heaven had watched the conflict, beholding their loved Commander as He passed through inexpressible suffering to make a way of escape for us. He had endured the test, greater than we shall ever be called to endure. The angels now ministered to the Son of God as He lay like one dying. He was strengthened with food, comforted with the message of His Father's love and the assurance that all heaven triumphed in His victory. Warming to life again, His great heart goes out in sympathy for man, and He goes forth to complete the work He has begun; to rest not until the foe is vanquished, and our fallen race redeemed. DA 131.1"
"Then the devil leaveth him, and, behold, angels came and ministered unto him."
The EGW passage directly alludes to the event described in Matthew 4:11, where angels ministered to Jesus after his temptation. The EGW passage expands on the details of this ministry, including the comfort and assurance provided.
"Never can the cost of our redemption be realized until the redeemed shall stand with the Redeemer before the throne of God. Then as the glories of the eternal home burst upon our enraptured senses we shall remember that Jesus left all this for us, that He not only became an exile from the heavenly courts, but for us took the risk of failure and eternal loss. Then we shall cast our crowns at His feet, and raise the song, “Worthy is the Lamb that was slain to receive power, and riches, and wisdom, and strength, and honor, and glory, and blessing.” Revelation 5:12 . DA 131.2"
"Saying with a loud voice, Worthy is the Lamb that was slain to receive power, and riches, and wisdom, and strength, and honour, and glory, and blessing."
Ellen White directly references Revelation 5:12 in this passage.