The quotes in Blue are comments from JW Files
The quotes in Black are from the Watchtower Society and Boldfaced for emphasis.

*** Watchtower 1986 3/15 12-14  'Do Not Be Quickly Shaken From Your Reason' ***

Have No Dealings With Apostates

7 Now, what will you do if you are confronted with apostate teaching—subtle reasonings— claiming that what you believe as one of Jehovah’s Witnesses is not the truth? For example, what will you do if you receive a letter or some literature, open it, and see right away that it is from an apostate? Will curiosity cause you to read it, just to see what he has to say? You may even reason: ‘It won’t affect me; I’m too strong in the truth. And, besides, if we have the truth, we have nothing to fear. The truth will stand the test.’ In thinking this way, some have fed their minds upon apostate reasoning and have fallen prey to serious questioning and doubt. (Compare James 1:5-8.) So remember the warning at 1 Corinthians 10:12: “Let him that thinks he is standing beware that he does not fall.”

This scripture is quoted above:

*** Rbi8  James 1:5-8 ***
5 So, if any one of YOU is lacking in wisdom, let him keep on asking God, for he gives generously to all and without reproaching; and it will be given him. 6 But let him keep on asking in faith, not doubting at all, for he who doubts is like a wave of the sea driven by the wind and blown about. 7 In fact, let not that man suppose that he will receive anything from Jehovah; 8 he is an indecisive man, unsteady in all his ways.
 
Says we are to ask God not the Society.
 
8 With loving help from caring brothers, some having doubts sown by apostates have recovered after a period of spiritual turmoil and trauma. But this pain could have been avoided. At Proverbs 11:9 we are told: “By his mouth the one who is an apostate brings his fellowman to ruin, but by knowledge are the righteous rescued.” Jude told fellow Christians to “continue showing mercy to some that have doubts; save them by snatching them out of the fire.” (Jude 22, 23) Paul advised the overseer Timothy to instruct “with mildness those not favorably disposed; as perhaps God may give them repentance leading to an accurate knowledge of truth, and they may come back to their proper senses out from the snare of the Devil, seeing that they have been caught alive by him for the will of that one.”—2 Timothy 2:25, 26.

9 Tragically, others have gone into complete darkness, even going back to Christendom’s erroneous teachings. The apostle Peter wrote about the tragic outcome for some who first walked in the truth but then turned aside. He said: “Certainly if, after having escaped from the defilements of the world by an accurate knowledge of the Lord and Savior Jesus Christ, they get involved again with these very things and are overcome, the final conditions have become worse for them than the first.” Peter said they are like the dog that returns to its vomit and the bathed sow that turns back to wallowing in the mire.—2 Peter 2:20-22.

What if the Societies teachings does not go along with what the Bibles says?
 
10 When a fellow human tells us, ‘Do not read this’ or, ‘Do not listen to that,’ we may be tempted to ignore his advice. But remember, in this case Jehovah is the One who tells us in his Word what to do. And what does he say about apostates? “Avoid them” (Romans 16:17, 18); “quit mixing in company with” them (1 Corinthians 5:11); and “never receive [them] into your homes or say a greeting to [them]” (2 John 9, 10). These are emphatic words, clear directions. If, out of curiosity, we were to read the literature of a known apostate, would that not be the same as inviting this enemy of true worship right into our home to sit down with us and relate his apostate ideas?

Jehovah's advise is to stay away from apostates. We are not an apostate to Jehovah, Jesus and his true teachings. The Society puts itself on the same level playing field as with Jehovah. The Society doesn't want you to look at their past teachings, that is why they go to such great lengths to scare you not to look. Jehovah warns us stay away from such ones as in the following scriptures:

*** Rbi8 Matthew 12:36-37 ***
36 I tell YOU that every unprofitable saying that men speak, they will render an account concerning it on Judgment Day; 37 for by your words you will be declared righteous, and by your words you will be condemned.”

*** Rbi8  Deuteronomy 18:20-22 ***
20 “‘However, the prophet who presumes to speak in my name a word that I have not commanded him to speak or who speaks in the name of other gods, that prophet must die. 21 And in case you should say in your heart: “How shall we know the word that Jehovah has not spoken?” 22 when the prophet speaks in the name of Jehovah and the word does not occur or come true, that is the word that Jehovah did not speak. With presumptuousness the prophet spoke it. You must not get frightened at him.’

*** Rbi8  1 John 4:1 ***
4 Beloved ones, do not believe every inspired expression, but test the inspired expressions to see whether they originate with God, because many false prophets have gone forth into the world.

** Rbi8  Ezekiel 13:8-9 ***
8 “‘Therefore this is what the Sovereign Lord Jehovah has said: “‘For the reason that YOU men have spoken untruth and YOU have visioned a lie, therefore here I am against YOU,’ is the utterance of the Sovereign Lord Jehovah.” 9 And my hand has come to be against the prophets that are visioning untruth and that are divining a lie. In the intimate group of my people they will not continue on, and in the register of the house of Israel they will not be written, and to the soil of Israel they will not come; and YOU people will have to know that I am the Sovereign Lord Jehovah,

*** Rbi8  Matthew 7:15-16 ***
15 “Be on the watch for the false prophets that come to YOU in sheep’s covering, but inside they are ravenous wolves. 16 By their fruits YOU will recognize them. Never do people gather grapes from thorns or figs from thistles, do they?
 
*** Rbi8  2 Peter 2:1 ***
2 However, there also came to be false prophets among the people, as there will also be false teachers among YOU. These very ones will quietly bring in destructive sects and will disown even the owner that bought them, bringing speedy destruction upon themselves.
 
*** Rbi8 Ephesians 5:6-10 ***
6 Let no man deceive YOU with empty words, for because of the aforesaid things the wrath of God is coming upon the sons of disobedience. 7 Therefore do not become partakers with them; 8 for YOU were once darkness, but YOU are now light in connection with [the] Lord. Go on walking as children of light, 9 for the fruitage of the light consists of every sort of goodness and righteousness and truth. 10 Keep on making sure of what is acceptable to the Lord;
 
11 Let us illustrate matters in this way: Suppose your teenage son received some pornographic material in the mail. What would you do? If he was inclined to read it out of curiosity, would you say: ‘Yes, son, go ahead and read it. It won’t hurt you. From infancy we’ve taught you that immorality is bad. Besides, you need to know what’s going on in the world in order to see that it’s truly bad’? Would you reason that way? Absolutely not! Rather, you would surely point out the dangers of reading pornographic literature and would require that it be destroyed. Why? Because no matter how strong a person may be in the truth, if he feeds his mind on the perverted ideas found in such literature, his mind and heart will be affected. A lingering wrong desire planted in the recesses of the heart can eventually create a perverted sexual appetite. The result? James says that when wrong desire becomes fertile, it gives birth to sin, and sin leads to death. (James 1:15) So why start the chain reaction?

12 Well, if we would act so decisively to protect our children from exposure to pornography, should we not expect that our loving heavenly Father would similarly warn us and protect us from spiritual fornication, including apostasy? He says, Keep away from it!

13 But suppose we are preaching the good news and people raise questions or objections similar to those raised by opposers? Of course, if a person is not sincere and merely wishes to argue, usually it is best to excuse ourselves and go to the next door. But if someone sincerely asks about certain claims of apostates, what can be done? First, we can ask what, exactly, has caused the concern. It may be only one or two points. Then we can stick to these and answer from the Scriptures, from the Society’s publications, and from what we truthfully know about the subject. We need not conclude that we have to read a book or a pamphlet that is filled with slander and half-truths in order to refute the false claims and teachings of opposers.
 
What half truths have I presented to you, all I have shown you is from the Bible and from the Societies own old light literature. The truth does not change. Remember thay don't want you to read anything negative about them. How could you fairly set on a jury trial if you only took one side. You have to examine the whole truth not just what is presented to you from Brooklyn.