The Book of Jude is all about slamming false teachings big time. Jude, who was an apostle and Jesus’ half-brother, initially wanted to talk about their shared salvation, but he changed his plan because of those pesky apostates—people who rejected the truth and turned away from God. Instead, he gives a heads-up to his readers about these apostates and makes it clear that they’re in for some divine judgment because of their shady lifestyle and evil teachings. Jude takes care to tell the real believers apart from the fakes, calling true believers “called, beloved in God the Father, and kept for Jesus Christ.” He’s like, “Hey, beloved readers, keep the faith and help others too!” And don’t worry, he assures them that God’s got their backs and can keep them blameless and super happy.