2 Nephi 28

2 Nephi 28:15–22. Three Dangers That Threaten the Saints

“There are at least three dangers that threaten the Church within, and the authorities need to awaken to the fact that the people should be warned unceasingly against them. As I see these, they are flattery of prominent men in the world, false educational ideas, and sexual impurity” (Joseph F. Smith, Gospel Doctrine, pp. 312–13; see also 2 Nephi 9:28–29).

2 Nephi 28:21. “Leadeth Them Away Carefully”
In a general conference address, Elder George Albert Smith quoted 2 Nephi 28:21 and said: 

“Now, I want you to note that: ‘And thus the devil cheateth their souls and leadeth them away carefully down to hell.’ And that is the way he does it, that’s exactly the way he does it. He does not come and grab you bodily and take you into his territory, but he whispers, ‘Do this little evil,’ and when he succeeds in that, another little evil and another, and, to use the expression quoted, ‘He cheateth their souls.’ That’s what he does. He makes you believe that you are gaining  something when you are losing. … Then again, that peculiar suggestion, ‘And he leadeth them carefully away down to hell’ is significant, that is his method. Men and women in the world today are subject to that influence, and they are being drawn here and there, and that whispering is going on and they do not understand what the Lord desires them to do, but they continue in the territory of the evil one, subject to his power where the Spirit of the Lord will not go” (in Conference Report, Apr. 1918, p. 40).

2 Nephi 28:22–23. The Existence of Satan
Why would Satan be happy to have people believe he does not exist? Elder Marion G. Romney bore this witness:

“A corollary to the pernicious falsehood that God is dead is the equally pernicious doctrine that there is no devil. Satan himself is the father of both of these lies. To believe them is to surrender to him. Such surrender has always led, is leading now, and will continue to lead men to destruction.
“Latter-day Saints know that there is a God. With like certainty, they know that Satan lives, that he is a powerful personage of spirit, the archenemy of God, of man, and of righteousness.
“The reality of the existence of both God and the devil is conclusively established by the scriptures and by human experience” (Ensign, June 1971, p. 35).

2 Nephi 29:1–6. “A Bible! A Bible!”
Satan fought a desperate battle to prevent the Book of Mormon from coming forth (see D&C 10). When he failed in this, his next tactic was to discredit its value in the eyes of the people.

Elder Bruce R. McConkie commented on those who reject the Book of Mormon: 

“Strange as it   may seem to present day enemies of the truth, their very opposition to the receipt of more of the word of the Lord by way of the Book of Mormon is one of the signs of the times. Their opposition, summarized in the canting chant, ‘A Bible! A Bible! We have got a Bible, and there cannot be any more Bible,’ brings forth this severe rebuke from the Lord: ‘Thou fool, that shall say: A Bible, we have got a Bible, and we need no more Bible. . . . Wherefore murmur ye, because that ye shall receive more of my word?’ (2 Ne. 29.)” (Mormon Doctrine, p. 719).