Page 435. A threefold message.— Revelation 14:6, 7 foretells the proclamation of the first angel's message. Then the prophet continues: “There followed another angel, saying, Babylon is fallen, is fallen.... and the third angel followed them.” The word here rendered “followed” means “to go along with,” “to follow one,” “go with him.” See Henry George Liddell and Robert Scott, Greek English Lexicon (Oxford: Clarendon Press, 1940), Vol. 1, p. 52. It also means “to accompany.” see George Abbott-Smith, A Manual Greek Lexicon of the New Testament (Edinburgh: T. and T. Clark, 1950), page 17. It is the same word that is used in Mark 5:24 , “Jesus went with him; and much people followed Him, and thronged Him.” It is also used of the redeemed one hundred and forty-four thousand, Revelation 14:4 , where it is said, “these are they which follow the Lamb whithersoever He goeth.” In both these places it is evident that the idea intended to be conveyed is that of “going together,” “in company with.”…
"And Jesus went with him; and much people followed him, and thronged him."
Ellen White directly references Mark 5:24 in this passage.
"These are they which were not defiled with women; for they are virgins. These are they which follow the Lamb whithersoever he goeth. These were redeemed from among men, being the firstfruits unto God and to the Lamb."
Ellen White directly references Revelation 14:4 in this passage.
"And did all drink the same spiritual drink: for they drank of that spiritual Rock that followed them: and that Rock was Christ."
Ellen White directly references 1 Corinthians 10:4 in this passage.
Page 447. Supremacy of the Bishops of Rome.—For the leading circumstances in the assumption of supremacy by the bishops of Rome, see Robert Francis Cardinal Bellarmine, Power of the Popes in Temporal Affairs (there is an English Translation in the Library of Congress, Washington, D. C.); Henry Edward Cardinal Manning, The Temporal Power of the Vicar of Jesus Christ (London: Burns and Lambert, 2d ed., 1862); and James Cardinal Gibbons, Faith Of Our Fathers (Baltimore: John Murphy Co., 110th ed., 1917), Chs. 5, 9, 10, 12. For Protestant authors see Trevor Gervase Jalland, The Church and the Papacy (London: Society for Promoting Christian Knowledge, 1944, a Bampton Lecture); and Richard Frederick Littledale, Petrine Claims (London: Society for Promoting Christian Knowledge, 1899). For sources of the early centuries of the Petrine theory, see James T. Shotwell and Louise Ropes Loomis, The See of Peter (New York: Columbia University Press, 1927). For the false “Donation of Constantine” see …
"Who opposeth and exalteth himself above all that is called God, or that is worshipped; so that he as God sitteth in the temple of God, shewing himself that he is God."
The EGW passage discusses the assumption of supremacy by the bishops of Rome, which aligns with the description in 2 Thessalonians 2:4 of someone who exalts himself above God and sits in the temple of God. The theme of claiming undue authority and elevating oneself is present in both passages.