Commentaries:
Verse 26 functions as a specific purpose statement for the whole epistle. In this pivotal verse, John explains his purpose for writing this letter: to warn true believers about these false teachers who were trying to draw them away from the truth. If they allow themselves to be deceived about the nature of Christ and the God Family, John writes, it could cost them their eternal life!
Earl L. Henn
For the Perfecting of the Saints