This quote is from the Watchtower 1980 8/1
"ARE you profoundly shocked and unduly disturbed when you see or hear of a Christian you know yielding to doubts, cooling off and perhaps even becoming rebellious to the point of deserting the Christian congregation and trying to draw others away with him? If so, you may be comforted in knowing that, sad as such occurrences may be, the Scriptures forewarn us that they will happen.
Among the various causes of apostasy, one of the foremost is unquestionably a lackoffaith through doubt. the one who doubts to the point of becoming an apostate sets himself up as a judge. He thinks he knows better than his fellow Christians, better also than the “faithful and discreet slave,” through whom he has learned the best part, if not all that he knows about Jehovah God and his purposes. He develops a spiritofindependence, and becomes “proud in heart . . . something detestable to Jehovah.” (Prov. 16:5) Some apostates even think they know better than God, as regards his ordering of events in the outworking of his purposes. Two other causes of apostasy are therefore ingratitude and presumption.—2 Pet. 2:10b-13a.
As to the effects of a course of apostasy, one immediate result is a loss of joy. The apostate becomes hardened in his rebellious ways. Another is he fails to take in the spiritual food provided by “the faithful and discreet slave”—this leading to spiritual weakness and breakdown of spirit. Contrasting the happiness of his loyal servants with the sad condition of apostates, Jehovah stated prophetically:
“Look! My own servants will eat, but you yourselves will go hungry. Look! My own servants will drink, but you yourselves will go thirsty. Look! My own servants will rejoice, but you yourselves will suffer shame. Look! My own servants will cry out joyfully because of the good condition of the heart, but you yourselves will make outcries because of the pain of heart and you will howl because of sheer breakdown of spirit.”
We have seen that one of the basic causes of apostasy is a lack of faith through destructive doubt, and that the word translated “doubt” also means “to distinguish.” The apostate makes himself a decider of what is true and what is false, of what is “good and bad” in the way of spiritual food. He becomes presumptuous."
As the watchtower mentioned, one immediate result of apostasy is a loss of joy. Whats your opinion?