7 distinct Greek words appear in this verse.

3 passages from patristic writers, Reformers, and church catechisms citing this verse.

• 1John 2:19 — They went out from us, but they were not of us; for if they had been of us, they would no doubt have continued with us: but they went out, that they might be made manifest that they were not all of us
• 1Tim 1:6 — From which some having swerved have turned aside unto vain jangling;
• 1Tim 1:20 — Of whom is Hymenaeus and Alexander; whom I have delivered unto Satan, that they may learn not to blaspheme.
• 2Pet 2:2 — And many shall follow their pernicious ways; by reason of whom the way of truth shall be evil spoken of.
• 2Pet 2:20 — For if after they have escaped the pollutions of the world through the knowledge of the Lord and Saviour Jesus Christ, they are again entangled therein, and overcome, the latter end is worse with them
• 2Tim 4:10 — For Demas hath forsaken me, having loved this present world, and is departed unto Thessalonica; Crescens to Galatia, Titus unto Dalmatia.
• Jude 1:4 — For there are certain men crept in unawares, who were before of old ordained to this condemnation, ungodly men, turning the grace of our God into lasciviousness, and denying the only Lord God, and our
• Phil 3:18 — (For many walk, of whom I have told you often, and now tell you even weeping, that they are the enemies of the cross of Christ: