These things have I written unto you concerning them that seduce you. These things have I written - Either meaning the whole epistle, or what is contained in the preceding verses, from the beginning of the 18th to the end of the 25th.
Them that seduce you - Περι των πλανωντων ὑμας· That is, the deceivers that were among them, and who were labouring to pervert the followers of Christ.