Verse 26 resumes for a moment and concludes the section respecting antichrists. "These things" refers to what precedes, especially verses 18-23, as distinct from what now follows. The present participle τῶν πλανώντων indicates the continual attempt of these false teachers to lead the "little children" astray. Ἔγραψα, as in verse 21, is the "epistolary aorist" (see on 2 John 1:4).

2:24-29 The truth of Christ, abiding in us, is a means to sever from sin, and unites us to the Son of God, Joh 15:3,4. What value should we put upon gospel truth! Thereby the promise of eternal life is made sure. The promise God makes, is suitable to his own greatness, power, and goodness; it is eternal life. The Spirit of truth will not lie; and he teaches all things in the present dispensation, all things necessary to our knowledge of God in Christ, and their glory in the gospel. The apostle repeats the kind words, little children; which denotes his affection. He would persuade by love. Gospel privileges oblige to gospel duties; and those anointed by the Lord Jesus abide with him. The new spiritual nature is from the Lord Christ. He that is constant to the practice of religion in trying times, shows that he is born from above, from the Lord Christ. Then, let us beware of holding the truth in unrighteousness, remembering that those only are born of God, who bear his holy image, and walk in his most righteous ways.These things have I written unto you,.... The little children, who were most likely to be imposed upon by antichrists and deceivers:

concerning them that seduce you. The Syriac, Arabic, and Ethiopic versions render it, "for them that seduce you"; not that they were actually seduced and carried away with the error of the wicked; for though God's elect may be staggered and waver, and be tossed to and fro by false teachers, and their doctrines, yet they cannot be totally and finally deceived: but the sense is, these men endeavoured to seduce them: they lay in wait to deceive, and attempted to deceive them, by walking in craftiness, and handling the word of God deceitfully; and therefore that they might be known, and so shunned and avoided, the apostle points them out, and shows who they are; that they are such who deny that Jesus is the Christ, and do not own neither the Father nor the Son; in doing which he acted the part of a tender Father, a faithful shepherd, and a careful monitor.