Watchtower 1st Oct '93 page 19
Apostasy is, in reality, a rebellion against Jehovah. Some apostates profess to know and serve God, but they reject teachings or requirements set out in his Word. Others claim to believe the Bible, but they reject Jehovah's organization and actively try to hinder its work. When they deliberately choose such badness after knowing what is right, when the bad becomes so ingrained that it is an inseparable part of their makeup, then a Christian must hate (in the Biblical sense of the word) those who have inseparably attached themselves to the badness. True Christians share Jehovah's feelings toward such apostates; they are not curious about apostate ideas. On the contrary, they "feel a loathing" toward those who have made themselves God's enemies, but they leave it to Jehovah to execute vengeance