Chapter 25—God's Law Immutable The temple of God was opened in heaven, and there was seen in His temple the ark of His testament.” Revelation 11:19 . The ark of God's testament is in the holy of holies, the second apartment of the sanctuary. In the ministration of the earthly tabernacle, which served “unto the example and shadow of heavenly things,” this apartment was opened only upon the great Day of Atonement for the cleansing of the sanctuary. Therefore the announcement that the temple of God was opened in heaven and the ark of His testament was seen points to the opening of the most holy place of the heavenly sanctuary in 1844 as Christ entered there to perform the closing work of the atonement. Those who by faith followed their great High Priest as He entered upon His ministry in the most holy place, beheld the ark of His testament. As they had studied the subject of the sanctuary they had come to understand the Saviour's change of ministration, and they saw that He was now offici…
"And the temple of God was opened in heaven, and there was seen in his temple the ark of his testament: and there were lightnings, and voices, and thunderings, and an earthquake, and great hail."
Ellen White directly references Revelation 11:19 in this passage.
"The ark in the tabernacle on earth contained the two tables of stone, upon which were inscribed the precepts of the law of God. The ark was merely a receptacle for the tables of the law, and the presence of these divine precepts gave to it its value and sacredness. When the temple of God was opened in heaven, the ark of His testament was seen. Within the holy of holies, in the sanctuary in heaven, the divine law is sacredly enshrined— the law that was spoken by God Himself amid the thunders of Sinai and written with His own finger on the tables of stone. GC 433.2"
"And the temple of God was opened in heaven, and there was seen in his temple the ark of his testament: and there were lightnings, and voices, and thunderings, and an earthquake, and great hail."
The EGW passage directly references Revelation 11:19, describing the ark of the testament being seen in the temple of God in heaven. The EGW passage expands on the significance of the ark containing the law of God, but the initial image is clearly drawn from Revelation.
"And thou shalt put into the ark the testimony which I shall give thee."
The EGW passage directly references and expands upon the concept of the Ark containing the law, as described in Exodus. It's more than a thematic parallel; it's a direct application and amplification of the biblical text.