Satan well knows that all whom he can lead to neglect prayer and the searching of the Scriptures, will be overcome by his attacks. Therefore he invents every possible device to engross the mind. There has ever been a class professing godliness, who, instead of following on to know the truth, make it their religion to seek some fault of character or error of faith in those with whom they do not agree. Such are Satan’s right-hand helpers.... They will put a false coloring upon the words and acts of those who love and obey the truth. They will represent the most earnest, zealous, self-denying servants of Christ as deceived or deceivers. It is their work to misrepresent the motives of every true and noble deed, to circulate insinuations, and arouse suspicion in the minds of the inexperienced. In every conceivable manner they will seek to cause that which is pure and righteous to be regarded as foul and deceptive. But none need be deceived concerning them. It may be readily seen whose children they are, whose example they follow, and whose work they do. “Ye shall know them by their fruits.” Matthew 7:16. Their course resembles that of Satan, the envenomed slanderer, “the accuser of our brethren.” Revelation 12:10. The Great Controversy, 519-520
The errors of popular theology have driven many a soul to skepticism who might otherwise have been a believer in the Scriptures... Some at first criticize and reason on the wrong side, from a mere love of controversy. They do not realize that they are thus entangling themselves in the snare of the fowler. But having openly expressed unbelief, they feel that they must maintain their position. Thus they unite with the ungodly and close to themselves the gates of Paradise. The Great Controversy, 525-526
The doctrine of man's consciousness in death, especially the belief that spirits of the dead return to minister to the living, has prepared the way for modern spiritualism... The pretended visitants from the world of spirits sometimes utter cautions and warnings which prove to be correct. Then, as confidence is gained, they present doctrines that directly undermine faith in the Scriptures.
The Great Controversy, 551-552
It is true that spiritualism is now changing its form and, veiling some of its more objectionable features, is assuming a Christian guise... While it formerly denounced Christ and the Bible, it now professes to accept both. But the Bible is interpreted in a manner that is pleasing to the unrenewed heart, while its solemn and vital truths are made of no effect. Love is dwelt upon as the chief attribute of God, but it is degraded to a weak sentimentalism, making little distinction between good and evil. God's justice, His denunciations of sin, the requirements of His holy law, are all kept out of sight. The people are taught to regard the Decalogue as a dead letter. Pleasing, bewitching fables captivate the senses and lead men to reject the Bible as the foundation of their faith. Christ is as verily denied as before; but Satan has so blinded the eyes of the people that the deception is not discerned.
There are few who have any just conception of the deceptive power of spiritualism and the danger of coming under its influence. Many tamper with it merely to gratify their curiosity. They have no real faith in it and would be filled with horror at the thought of yielding themselves to the spirits' control. But they venture upon the forbidden ground, and the mighty destroyer exercises his power upon them against their will. Let them once be induced to submit their minds to his direction, and he holds them captive. It is impossible, in their own strength, to break away from the bewitching, alluring spell. Nothing but the power of God, granted in answer to the earnest prayer of faith, can deliver these ensnared souls.
All who indulge sinful traits of character, or willfully cherish a known sin, are inviting the temptations of Satan. They separate themselves from God and from the watchcare of His angels; as the evil one presents his deceptions, they are without defense and fall an easy prey. Those who thus place themselves in his power little realize where their course will end. Having achieved their overthrow, the tempter will employ them as his agents to lure others to ruin. The Great Controversy, 558-560
God never forces the will or the conscience; but Satan’s constant resort—to gain control of those whom he cannot otherwise seduce—is compulsion by cruelty. Through fear or force he endeavors to rule the conscience, and to secure homage to himself. To accomplish this, he works through both religious and secular authorities, moving them to the enforcement of human laws in defiance of the law of God. The Great Controversy, p. 591
As the storm approaches, a large class who have professed faith in the third angel’s message, but have not been sanctified through obedience to the truth, abandon their position, and join the ranks of the opposition. By uniting with the world and partaking of its spirit, they have come to view matters in nearly the same light; and when the test is brought, they are prepared to choose the easy, popular side. Men of talent and pleasing address, who once rejoiced in the truth, employ their powers to deceive and mislead souls. They become the most bitter enemies of their former brethren. When Sabbath-keepers are brought before the courts to answer for their faith, these apostates are the most efficient agents of Satan to misrepresent and accuse them, and by false reports and insinuations to stir up the rulers against them... As the opposition rises to a fiercer height, the servants of God are again perplexed; for it seems to them that they have brought the crisis. But conscience and the Word of God assure them that their course is right; and although the trials continue, they are strengthened to bear them.
The Great Controversy, p. 608-609
These are very sobering thoughts. Take this as a warning not to become like "the Accuser of our brethren".
As we live in the anti-typical day of atonement,
let's remember these verses from Isaiah..
“Is this not the fast that I have chosen:
To loose the bonds of wickedness,
To undo the heavy burdens,
To let the oppressed go free,
And that you break every yoke?
Is it not to share your bread with the hungry,
And that you bring to your house the poor who are cast out;
When you see the naked, that you cover him,
And not hide yourself from your own flesh?
Then your light shall break forth like the morning,
Your healing shall spring forth speedily,
And your righteousness shall go before you;
The glory of the Lord shall be your rear guard.
Then you shall call, and the Lord will answer;
You shall cry, and He will say, ‘Here I am.’
“If you take away the yoke from your midst,
The pointing of the finger, and speaking wickedness,
If you extend your soul to the hungry
And satisfy the afflicted soul,
Then your light shall dawn in the darkness,
And your darkness shall be as the noonday.