"Another compact—called in Scripture the “old” covenant—was formed between God and Israel at Sinai, and was then ratified by the blood of a sacrifice. The Abrahamic covenant was ratified by the blood of Christ, and it is called the “second,” or “new,” covenant, because the blood by which it was sealed was shed after the blood of the first covenant. That the new covenant was valid in the days of Abraham is evident from the fact that it was then confirmed both by the promise and by the oath of God—the “two immutable things, in which it was impossible for God to lie.” Hebrews 6:18 . PP 371.1"
"That by two immutable things, in which it was impossible for God to lie, we might have a strong consolation, who have fled for refuge to lay hold upon the hope set before us:"
EGW directly quotes Hebrews 6:18 and uses it to support her argument about the Abrahamic covenant. This is a clear and direct allusion.
"But if the Abrahamic covenant contained the promise of redemption, why was another covenant formed at Sinai? In their bondage the people had to a great extent lost the knowledge of God and of the principles of the Abrahamic covenant. In delivering them from Egypt, God sought to reveal to them His power and His mercy, that they might be led to love and trust Him. He brought them down to the Red Sea—where, pursued by the Egyptians, escape seemed impossible—that they might realize their utter helplessness, their need of divine aid; and then He wrought deliverance for them. Thus they were filled with love and gratitude to God and with confidence in His power to help them. He had bound them to Himself as their deliverer from temporal bondage. PP 371.2"
"And Moses said unto the people, Fear ye not, stand still, and see the salvation of the Lord, which he will shew to you to day: for the Egyptians whom ye have seen to day, ye shall see them again no more for ever."
Both passages describe God's deliverance of the Israelites from Egypt and the circumstances surrounding it. EGW elaborates on the purpose of the Red Sea experience, which aligns with the event described in Exodus 14:13.
"But there was a still greater truth to be impressed upon their minds. Living in the midst of idolatry and corruption, they had no true conception of the holiness of God, of the exceeding sinfulness of their own hearts, their utter inability, in themselves, to render obedience to God's law, and their need of a Saviour. All this they must be taught. PP 371.3"
"Therefore by the deeds of the law there shall no flesh be justified in his sight: for by the law is the knowledge of sin."
EGW's statement about the Israelites' lack of understanding of their sinfulness and inability to obey God's law without a Savior directly reflects the principle articulated in Romans 3:20, which states that the law reveals sin but does not justify.
God brought them to Sinai; He manifested His glory; He gave them His law, with the promise of great blessings on condition of obedience: “If ye will obey My voice indeed, and keep My covenant, then ... ye shall be unto Me a kingdom of priests, and an holy nation.” Exodus 19:5, 6 . The people did not realize the sinfulness of their own hearts, and that without Christ it was impossible for them to keep God's law; and they readily entered into covenant with God. Feeling that they were able to establish their own righteousness, they declared, “All that the Lord hath said will we do, and be obedient.” Exodus 24:7 . They had witnessed the proclamation of the law in awful majesty, and had trembled with terror before the mount; and yet only a few weeks passed before they broke their covenant with God, and bowed down to worship a graven image. They could not hope for the favor of God through a covenant which they had broken; and now, seeing their sinfulness and their need of pardon, they were b…
"Now therefore, if ye will obey my voice indeed, and keep my covenant, then ye shall be a peculiar treasure unto me above all people: for all the earth is mine:"
EGW directly quotes Exodus 19:5 and uses it to illustrate the covenant God made with Israel at Sinai. This is a clear and direct allusion.
"And he took the book of the covenant, and read in the audience of the people: and they said, All that the Lord hath said will we do, and be obedient."
Ellen White directly references Exodus 24:7 in this passage.
"Therefore by the deeds of the law there shall no flesh be justified in his sight: for by the law is the knowledge of sin."
The EGW passage discusses the inability of the Israelites to keep the law and their need for Christ, which aligns with the concept in Romans 3:20 that the law reveals sin but does not justify. The connection is thematic, not a direct allusion, and the confidence is slightly reduced because the connection is not extremely strong.