"“Ye have sinned a great sin,” he said, “and now I will go up unto the Lord; peradventure I shall make an atonement for your sin.” He went, and in his confession before God he said, “Oh, this people have sinned a great sin, and have made them gods of gold. Yet now if Thou wilt forgive their sin—; and if not, blot me, I pray Thee, out of Thy book which Thou hast written.” The answer was, “Whosoever hath sinned against Me, him will I blot out of My book. Therefore now go, lead the people into the place of which I have spoken unto thee: behold, Mine Angel shall go before thee: nevertheless, in the day when I visit, I will visit their sin upon them.” PP 326.2"
"Yet now, if thou wilt forgive their sin—; and if not, blot me, I pray thee, out of thy book which thou hast written."
The EGW passage directly quotes Exodus 32:32.
"And the Lord said unto Moses, Whosoever hath sinned against me, him will I blot out of my book."
The EGW passage directly quotes Exodus 32:33.
"And Moses returned unto the Lord, and said, Oh, this people have sinned a great sin, and have made them gods of gold."
The EGW passage directly quotes and paraphrases Exodus 32:31, making it an explicit allusion.
In the prayer of Moses our minds are directed to the heavenly records in which the names of all men are inscribed, and their deeds, whether good or evil, are faithfully registered. The book of life contains the names of all who have ever entered the service of God. If any of these depart from Him, and by stubborn persistence in sin become finally hardened against the influences of His Holy Spirit, their names will in the judgment be blotted from the book of life, and they themselves will be devoted to destruction. Moses realized how dreadful would be the fate of the sinner; yet if the people of Israel were to be rejected by the Lord, he desired his name to be blotted out with theirs; he could not endure to see the judgments of God fall upon those who had been so graciously delivered. The intercession of Moses in behalf of Israel illustrates the mediation of Christ for sinful men. But the Lord did not permit Moses to bear, as did Christ, the guilt of the transgressor. “Whosoever hath si…
"He that overcometh, the same shall be clothed in white raiment; and I will not blot out his name out of the book of life, but I will confess his name before my Father, and before his angels."
Both passages discuss the concept of names being blotted out of the book of life, representing a loss of salvation or divine favor. The EGW passage expands on the implications of this concept in the context of Moses' intercession and the judgment.
"Let them be blotted out of the book of the living, and not be written with the righteous."
Both passages refer to being blotted out of a book, representing removal from a group or loss of favor. The EGW passage connects this to the book of life and the judgment, while Psalms 69:28 speaks more generally about being removed from the righteous.