I write to you, fathers, because you know him who is from the beginning. I write to you, young men, because you have overcome the evil one. I write to you, little children, because you know the Father.
Because ye have overcome the wicked one - That is, because you have vigor, (see the next verse), and that vigor you have shown by overcoming the assaults of the wicked one - the devil. You have triumphed over the passions which prevail in early life; you have combated the allurements of vice, ambition, covetousness, and sensuality; and you have shown that there is a strength of character and of piety on which reliance can be placed in promoting religion. It is proper, therefore, to exhort you not to disgrace the victory which you have already gained, but to employ your vigor of character in maintaining the cause of the Saviour. The thing to which John appeals here is the energy of those at this period of life, and it is proper at all times to make this the ground of appeal in addressing a church. It is right to call on those who are in the prime of life, and who are endowed with energy of character, to employ their talents in the service of the Lord Jesus, and to stand up as the open advocates of truth. Thus, the apostle calls on the three great classes into which a community or a church may be considered as divided: youth, because their sins were already forgiven, and, though young, they had actually entered on a career of virtue and religion, a career which by all means they ought to be exhorted to pursue; “fathers,” or aged men, because they had had long experience in religion, and had a thorough acquaintance with the doctrines and duties of the gospel, and they might be expected to stand steadfastly as examples to others; and “young men,” those who were in the vigor and prime of life, because they had shown that they had power to resist evil, and were endowed with strength, and it was proper to call on them to exert their vigor in the sacred cause of religion.