"Their obedience to the law of God would make them marvels of prosperity before the nations of the world. He who could give them wisdom and skill in all cunning work would continue to be their teacher, and would ennoble and elevate them through obedience to His laws. If obedient, they would be preserved from the diseases that afflicted other nations, and would be blessed with vigor of intellect. The glory of God, His majesty and power, were to be revealed in all their prosperity. They were to be a kingdom of priests and princes. God furnished them with every facility for becoming the greatest nation on the earth. COL 288.3"
"And ye shall be unto me a kingdom of priests, and an holy nation. These are the words which thou shalt speak unto the children of Israel."
EGW directly references the concept of Israel being a 'kingdom of priests' which is a direct quote from Exodus 19:6. The surrounding context in EGW's writing further elaborates on the blessings and responsibilities associated with this status, making it more than just a thematic parallel.
"And it shall come to pass, if thou shalt hearken diligently unto the voice of the Lord thy God, to observe and to do all his commandments which I command thee this day, that the Lord thy God will set thee on high above all nations of the earth:"
Both passages discuss the blessings of obedience to God's law, including prosperity and elevation among nations. EGW elaborates on the specific blessings and the purpose behind them.
In the most definite manner Christ through Moses had set before them God's purpose, and had made plain the terms of their prosperity. “Thou art an holy people unto the Lord thy God,” He said; “the Lord thy God hath chosen thee to be a special people unto Himself, above all people that are upon the face of the earth.... Know therefore that the Lord thy God, He is God, the faithful God, which keepeth covenant and mercy with them that love Him and keep His commandments to a thousand generations.... Thou shalt therefore keep the commandments, and the statutes, and the judgments, which I command thee this day, to do them. Wherefore it shall come to pass, if ye hearken to these judgments, and keep, and do them, that the Lord thy God shall keep unto thee the covenant and the mercy which He sware unto thy fathers; and He will love thee, and bless thee, and multiply thee: He will also bless the fruit of thy womb, and the fruit of thy land, thy corn, and thy wine, and thine oil, the increase of …
"For thou art an holy people unto the Lord thy God: the Lord thy God hath chosen thee to be a special people unto himself, above all people that are upon the face of the earth."
EGW quotes Deuteronomy 7:6 almost verbatim within the passage. This is a clear and direct allusion.
"Know therefore that the Lord thy God, he is God, the faithful God, which keepeth covenant and mercy with them that love him and keep his commandments to a thousand generations;"
EGW quotes Deuteronomy 7:9 almost verbatim within the passage. This is a clear and direct allusion.
"Thou shalt therefore keep the commandments, and the statutes, and the judgments, which I command thee this day, to do them."
EGW quotes Deuteronomy 7:11 almost verbatim within the passage. This is a clear and direct allusion.