1 John 2:12

. write unto you, little children. Commending what he had said to the several grades whom he addressed. He places them in three classes according to their respective ages. He congratulates them on the gift of the Gospel which they had received, and exhorts them to persevere and make progress therein. The children represent beginners or neophytes; young men, those who are advancing; the old men, those who are perfect. And he thus suggests that Christians should advance in virtue, as they advance in years. Clemens, Œcumenius, and others take this view, though S. Augustine holds that these three terms apply equally to all classes; that they are called children as having been new-born in baptism, fathers as acknowledging Christ as their Father and the Ancient of Days, and youths because they are strong. But the first meaning seems the simplest. Because your sins, into which ye are likely to fall, are forgiven you, in baptism, for His Name's sake, i.e., for Christ's sake, or else by our calling on Christ's Name, or else by the authority and power of Christ. For by this are sins remitted through His grace and merits.

Morally. S. John here teaches that great care must be taken in training children. (He here gives as an instance the case of the youth whom he entrusted to a Bishop.) For the whole regulation of our life depends on our childhood's training. S. Ignatius accordingly founded schools for such training. See Rebadeneira in his life (lib. iii . cap. 24), where he quotes many Fathers, Councils, and Philosophers.

Mystically. S. Augustine (de Vera Relig. cap. 26) describes the seven ages of a righteous man. He first drinks in the lessons and examples of history next he forgets things of earth, and reaches after things divine, and strives after the highest and unchanging rule of life, by the steps of wisdom next he proceeds more boldly, wedding his carnal appetite to the strength of reason, and rejoicing within with a kind of conjugal joy, when the soul is united to the mind, and is so covered with the veil of modesty as no longer to be compelled to live rightly, but even not to delight in sin, though all might allow it. And fourthly, he acts thus in a more bold and orderly manner, shining forth into the perfect man, and becoming more capable of bearing all the persecutions and tempests of this world and even breaking their force. Fifthly, to be calm and tranquil, in every respect enjoying to the full the highest and ineffable wisdom; and sixthly, a thorough turning to the life eternal, and a complete obliviousness to this temporal life, and a passing on to the perfect image and likeness of God. The seventh age is that of eternal rest, which is not distinguished by any different stages of growth. Ver 13.. write unto you, fathers, because ye have known Him who is from the beginning. Fathers, we know, are proud of their experience; and therefore he fitly congratulates them on having known the Ancient of Days, who is from eternity. For, as S. Augustine says, "Christ is new in the flesh, but ancient in His Godhead." He adds, "Remember, ye who are fathers, if ye forget Him who is from the beginning, ye have lost your fatherhood."

I write unto you, young men, because ye have overcome the wicked one. He passes to that stage of life which rejoices in its strength, and is full of concupiscence. He congratulates them for having overcome the wicked one, for he is speaking to Christian young people living in a Christian way, as S. Agnes, S. Lucy, S. Agatha, and many others, or that young man of whom S. Jerome speaks (in the life of Paul the first hermit), who when tempted by a harlot to sin, bit off his tongue, and spat it in her face, and thus by the intensity of the pain overcame the feeling of lust. This strength and this victory was Prompted by Christ. See 1 Corinthians 15:57. And S. Augustine (in. loc.) says, "If the wicked one is overcome by the young men, He is fighting with us. He fights, but he does not overcome. Is it because we are strong, or because He is strong in us, who in the hands of His persecutors was found weak? He hath made us strong who resisted not His persecutors, for He was crucified in weakness, but liveth by the power of God." (2 Corinthians 13:4.)