"But none need be deceived by the lying claims of spiritualism. God has given the world sufficient light to enable them to discover the snare. As already shown, the theory which forms the very foundation of spiritualism is at war with the plainest statements of Scripture. The Bible declares that the dead know not anything, that their thoughts have perished; they have no part in anything that is done under the sun; they know nothing of the joys or sorrows of those who were dearest to them on earth. GC 556.1"
"For the living know that they shall die: but the dead know not any thing, neither have they any more a reward; for the memory of them is forgotten."
EGW directly references the concept that the dead know nothing, which is explicitly stated in Ecclesiastes 9:5. This is a clear and direct allusion.
Furthermore, God has expressly forbidden all pretended communication with departed spirits. In the days of the Hebrews there was a class of people who claimed, as do the spiritualists of today, to hold communication with the dead. But the “familiar spirits,” as these visitants from other worlds were called, are declared by the Bible to be “the spirits of devils.” (Compare Numbers 25:1-3 ; Psalm 106:28 ; 1 Corinthians 10:20 ; Revelation 16:14 .) The work of dealing with familiar spirits was pronounced an abomination to the Lord, and was solemnly forbidden under penalty of death. Leviticus 19:31 ; 20:27 . The very name of witchcraft is now held in contempt. The claim that men can hold intercourse with evil spirits is regarded as a fable of the Dark Ages. But spiritualism, which numbers its converts by hundreds of thousands, yea, by millions, which has made its way into scientific circles, which has invaded churches, and has found favor in legislative bodies, and even in the courts of kin…
"And Israel abode in Shittim, and the people began to commit whoredom with the daughters of Moab. And they called the people unto the sacrifices of their gods: and the people did eat, and bowed down to their gods. And Israel joined himself unto Baal–peor: and the anger of the Lord was kindled against Israel."
Ellen White directly references Numbers 25:1-3 in this passage.
"They joined themselves also unto Baal–peor, and ate the sacrifices of the dead."
Ellen White directly references Psalms 106:28 in this passage.
"But I say, that the things which the Gentiles sacrifice, they sacrifice to devils, and not to God: and I would not that ye should have fellowship with devils."
Ellen White directly references 1 Corinthians 10:20 in this passage.
"For they are the spirits of devils, working miracles, which go forth unto the kings of the earth and of the whole world, to gather them to the battle of that great day of God Almighty."
Ellen White directly references Revelation 16:14 in this passage.
"Regard not them that have familiar spirits, neither seek after wizards, to be defiled by them: I am the Lord your God."
Ellen White directly references Leviticus 19:31 in this passage.
"If there were no other evidence of the real character of spiritualism, it should be enough for the Christian that the spirits make no difference between righteousness and sin, between the noblest and purest of the apostles of Christ and the most corrupt of the servants of Satan. By representing the basest of men as in heaven, and highly exalted there, Satan says to the world: “No matter how wicked you are; no matter whether you believe or disbelieve God and the Bible. Live as you please; heaven is your home.” The spiritualist teachers virtually declare: “Everyone that doeth evil is good in the sight of the Lord, and He delighteth in them; or, Where is the God of judgment?” Malachi 2:17 . Saith the word of God: “Woe unto them that call evil good, and good evil; that put darkness for light, and light for darkness.” Isaiah 5:20 . GC 556.3"
"Ye have wearied the Lord with your words. Yet ye say, Wherein have we wearied him? When ye say, Every one that doeth evil is good in the sight of the Lord, and he delighteth in them; or, Where is the God of judgment?"
Ellen White directly references Malachi 2:17 in this passage.
"Woe unto them that call evil good, and good evil; that put darkness for light, and light for darkness; that put bitter for sweet, and sweet for bitter!"
Ellen White directly references Isaiah 5:20 in this passage.