idolatry, sorcery, ¹  hostilities, ²  strife, ³  jealousy, outbursts of anger, selfish rivalries, dissensions, ⁴  factions,

For there must in fact be divisions among you, so that those of you who are approved may be evident. ¹ 

But false prophets arose among the people, just as there will be false teachers among you. ¹  These false teachers ²  will ³  infiltrate your midst ⁴  with destructive heresies, ⁵  even to the point of ⁶  denying the Master who bought them. As a result, they will bring ⁷  swift destruction on themselves.