Page 54. Prophetic Dates.—An important principle in prophetic interpretation in connection with time prophecies is the year-day principle, under which a day of prophetic time is counted as a calendar year of historic time. Before the Israelites entered the land of Canaan they sent twelve spies ahead to investigate. The spies were gone forty days, and upon their return the Hebrews, frightened at their report, refused to go up and occupy the promised land. The result was a sentence the Lord passed upon them: “After the number of the days in which ye searched the land, even forty days, each day for a year, shall ye bear your iniquities, even forty years.” Numbers 14:34 . A similar method of computing future time is indicated through the prophet Ezekiel. Forty years of punishment for iniquities awaited the kingdom of Judah. The Lord said through the prophet: “Lie again on thy right side, and thou shalt bear the iniquity of the house of Judah forty days: I have appointed thee each day for a…
"After the number of the days in which ye searched the land, even forty days, each day for a year, shall ye bear your iniquities, even forty years, and ye shall know my breach of promise."
Ellen White directly references Numbers 14:34 in this passage.
"And when thou hast accomplished them, lie again on thy right side, and thou shalt bear the iniquity of the house of Judah forty days: I have appointed thee each day for a year."
Ellen White directly references Ezekiel 4:6 in this passage.
"And he said unto me, Unto two thousand and three hundred days; then shall the sanctuary be cleansed."
Ellen White directly references Daniel 8:14 in this passage.
"And he shall speak great words against the most High, and shall wear out the saints of the most High, and think to change times and laws: and they shall be given into his hand until a time and times and the dividing of time."
Ellen White directly references Daniel 7:25 in this passage.
"But the court which is without the temple leave out, and measure it not; for it is given unto the Gentiles: and the holy city shall they tread under foot forty and two months."
Ellen White directly references Revelation 11:2 in this passage.
"And I will give power unto my two witnesses, and they shall prophesy a thousand two hundred and threescore days, clothed in sackcloth."
Ellen White directly references Revelation 11:3 in this passage.
Page 56. Forged Writings.—Among the documents that at the present time are generally admitted to be forgeries, the Donation of Constantine and the Pseudo-Isidorian Decretals are of primary importance. “The ‘Donation of Constantine’ is the name traditionally applied, since the later Middle Ages, to a document purporting to have been addressed by Constantine the Great to Pope Sylvester I, which is found first in a Parisian manuscript ( Codex lat. 2777 ) of probably the beginning of the ninth century. Since the eleventh century it has been used as a powerful argument in favor of the papal claims, and consequently since the twelfth it has been the subject of a vigorous controversy. At the same time, by rendering it possible to regard the papacy as a middle term between the original and the medieval Roman Empire, and thus to form a theoretical basis of continuity for the reception of the Roman law in the Middle Ages, it has had no small influence upon secular history.”— The New Schaff-Herzo…
"Let no man deceive you by any means: for that day shall not come, except there come a falling away first, and that man of sin be revealed, the son of perdition;"
The EGW passage discusses forged writings used to support papal claims, which aligns with the Thessalonians verse about deception and a 'falling away.' The forged documents contributed to the apostasy.