Commentaries
2:12-14 As Christians have their peculiar states, so they have peculiar duties; but there are precepts and obedience common to all, particularly mutual love, and contempt of the world. The youngest sincere disciple is pardoned: the communion of saints is attended with the forgiveness of sins. Those of the longest standing in Christ's school need further advice and instruction. Even fathers must be written unto, and preached unto; none are too old to learn. But especially young men in Christ Jesus, though they are arrived at strength of spirit and sound sense, and have successfully resisted first trials and temptations, breaking off bad habits and connexions, and entered in at the strait gate of true conversion. The different descriptions of Christians are again addressed. Children in Christ know that God is their Father; it is wisdom. Those advanced believers, who know Him that was from the beginning, before this world was made, may well be led thereby to give up this world. It will be the glory of young persons to be strong in Christ, and his grace. By the word of God they overcome the wicked one.
13, 14. All three classes are first addressed in the present. "I write"; then in the past (aorist) tense, "I wrote" (not "I have written"; moreover, in the oldest manuscripts and versions, in the end of 1Jo 2:13, it is past, "I wrote," not as English Version, "I write"). Two classes, "fathers" and "young men," are addressed with the same words each time (except that the address to the young men has an addition expressing the source and means of their victory); but the "little sons" and "little children" are differently addressed.
have known—and do know: so the Greek perfect means. The "I wrote" refers not to a former Epistle, but to this Epistle. It was an idiom to put the past tense, regarding the time from the reader's point of view; when he should receive the Epistle the writing would be past. When he uses "I write," he speaks from his own point of view.
him that is from the beginning—Christ: "that which was from the beginning."
overcome—The fathers, appropriately to their age, are characterized by knowledge. The young men, appropriately to theirs, by activity in conflict. The fathers, too, have conquered; but now their active service is past, and they and the children alike are characterized by knowing (the fathers know Christ, "Him that was from the beginning"; the children know the Father). The first thing that the little children realize is that God is their Father; answering in the parallel clause to "little sons … your sins are forgiven you for His name's sake," the universal first privilege of all those really-dear sons of God. Thus this latter clause includes all, whereas the former clause refers to those more especially who are in the first stage of spiritual life, "little children." Of course, these can only know the Father as theirs through the Son (Mt 11:27). It is beautiful to see how the fathers are characterized as reverting back to the first great truths of spiritual childhood, and the sum and ripest fruit of advanced experience, the knowledge of Him that was from the beginning (twice repeated, 1Jo 2:13, 14). Many of them had probably known Jesus in person, as well as by faith.