Book of 1 John Chapter 2 Vs. 14

 The New Commandment

1 John 2:14 “I have written unto you, fathers, because ye have known him [that is] from the beginning. I have written unto you, young men, because ye are strong, and the word of God abideth in you, and ye have overcome the wicked one.”

This is very much the same as the verse above. The difference being that the little children are omitted. Those remaining have learned to overcome the devil. They have matured by the study of the Word of God.

Him that is from the beginning.

The eternal, pre-existent Christ, who was from the beginning (John 1:1). The eternal Son, through whom men are brought into the relation of children of God, and learn to know the Father.

Father

The knowledge of God involves, on the part of both fathers and children, the knowledge of Christ.

strong (ἰσχυροί)

Was not able (οὐκ ἴσχυσεν)

From ἰσχύς, strength. See on power, 2Pet. 2:11. To be strong in body or in resources, and so to be worth, as Lat., valere.“This man was not worth enough, or was not good for the completion.” In this latter sense, Mat. 5:13, “good for nothing.” See on was not able, Luke 14:30

I cannot (οὐκ ἰσχύω)

His luxurious life had unfitted him for hard labor. In Aristophanes Birds, 1431, a sycophant is asked: Tell me, being a young man, do you lodge information's against strangers? He replies: “Yes; why should I suffer, for I know not how to dig?” see on I cannot, Luke 16:3.

abideth in you... This is the secret of victory over sin. As long as one remains in harmony with the Word of God he cannot sin (see, 1Jhn. 3:9).

They are not overcome of the devil, because they are grounded in the Word of God. Again, speaking of fathers is just a further knowing of God.

We see in this, the growth of the Christian and the knowledge acquired to help live in the Light.

The attainments of the readers were then reiterated, but with some subtle variations. Thought of as children again, it can be said that they have known the Father. Unlike newborn infants teknia little born ones, 1Jhn. 2:12; see on 1Jhn. 2:1), who can scarcely recognize their fathers, these people paidia, children; cf. 1Jhn. 2:18) - through fellowship - have come to know their divine Parent. But what can be added to the experience of knowing the Eternal One? In calling them fathers again, John simply repeated the attainment mentioned earlier without changing it. Then viewing them once more as young men, the writer implied growth in strength. In 1Jhn. 2:13, he had simply spoken of victory over Satan. Now he wrote, you are strong, and the Word of God lives in you, and you have overcome the evil one. By repeating the three categories under which he here addressed his audience, John suggested not only that they possessed spiritual attainments worthy of being called children, fathers, and young men, but also that they possessed these attainments in ample measure.