"The tabernacle was so constructed that it could be taken apart and borne with the Israelites in all their journeyings. It was therefore small, being not more than fifty-five feet in length, and eighteen in breadth and height. Yet it was a magnificent structure. The wood employed for the building and its furniture was that of the acacia tree, which was less subject to decay than any other to be obtained at Sinai. The walls consisted of upright boards, set in silver sockets, and held firm by pillars and connecting bars; and all were overlaid with gold, giving to the building the appearance of solid gold. The roof was formed of four sets of curtains, the innermost of “fine twined linen, and blue, and purple, and scarlet: with cherubim of cunning work;” the other three respectively were of goats’ hair, rams’ skins dyed red, and sealskins, so arranged as to afford complete protection. PP 347.1"
"And thou shalt make boards for the tabernacle of shittim wood standing up."
EGW is directly referencing and elaborating on the description of the tabernacle's construction, including the use of shittim wood, as described in Exodus 26:15.
"The building was divided into two apartments by a rich and beautiful curtain, or veil, suspended from gold- plated pillars; and a similar veil closed the entrance of the first apartment. These, like the inner covering, which formed the ceiling, were of the most gorgeous colors, blue, purple, and scarlet, beautifully arranged, while inwrought with threads of gold and silver were cherubim to represent the angelic host who are connected with the work of the heavenly sanctuary and who are ministering spirits to the people of God on earth. PP 347.2"
"And thou shalt make a vail of blue, and purple, and scarlet, and fine twined linen of cunning work: with cherubims shall it be made:"
The EGW passage directly references the veil made of blue, purple, scarlet, and fine twined linen with cherubim, as described in Exodus 26:31.
"And after the second veil, the tabernacle which is called the Holiest of all;"
Both passages refer to the veil separating the two compartments of the tabernacle. While EGW describes the veil's beauty and symbolism, Hebrews 9:3 identifies the area beyond the second veil as the Holiest of all. The connection lies in the shared reference to the veil as a significant feature of the tabernacle.
The sacred tent was enclosed in an open space called the court, which was surrounded by hangings, or screens, of fine linen, suspended from pillars of brass. The entrance to this enclosure was at the eastern end. It was closed by curtains of costly material and beautiful workmanship, though inferior to those of the sanctuary. The hangings of the court being only about half as high as the walls of the tabernacle, the building could be plainly seen by the people without. In the court, and nearest the entrance, stood the brazen altar of burnt offering. Upon this altar were consumed all the sacrifices made by fire unto the Lord, and its horns were sprinkled with the atoning blood. Between the altar and the door of the tabernacle was the laver, which was also of brass, made from the mirrors that had been the freewill offering of the women of Israel. At the laver the priests were to wash their hands and their feet whenever they went into the sacred apartments, or approached the altar to offe…
"And thou shalt make the court of the tabernacle: for the south side southward there shall be hangings for the court of fine twined linen of an hundred cubits long for one side:"
EGW directly references the court of the tabernacle with hangings of fine twined linen, as described in Exodus 27:9.
"And thou shalt make an altar of shittim wood, five cubits long, and five cubits broad; the altar shall be foursquare: and the height thereof shall be three cubits."
The EGW passage describes the altar of burnt offering, and the Exodus verse specifies its dimensions. This is a direct reference.