Hebrews gave a similar assurance (Heb. 3:6, 14). On the other hand, those who oppose the truth or engage in apostasy (cf. Num. 16:1–35; 22–25; 1 Tim. 4:1–3; 2 Peter 2:1–9; Jude 10–13), or are not anchored in the truth (Matt. 7:26–27; Mark 4:17; Heb. 6:4–6), have no real salvation. The second clearly recognizable characteristic of antichrists is that they deny the faith. Specifically in this context they fail John’s Christological test. The spirit of antichrist is that of the liar … who denies that