Children, Fathers, Young Men

I am writing to you, little children, because your sins are forgiven for his name’s sake. 
I am writing to you, fathers, because you know him who is from the beginning.
I am writing to you, young men, because you have overcome the evil one.
I write to you, children, because you know the Father. 
I write to you, fathers, because you know him who is from the beginning.
I write to you, young men, because you are strong, and the word of God abides in you, and you have overcome the evil one.
1 John 2:12-14 ESV
http://bible.com/59/1jn.2.12-14.ESV

Scripture makes a distinction between babes, young men, and fathers. And this is not a distinction made by age, but by spiritual maturity.

Little children
RECEIVE their sins are forgiven FOR HIS SAKE
BECAUSE they know the Father

Fathers
Know Him who is from the beginning (Jesus Christ, Word of God)

Young Men
Have Overcome the Evil One
Strong, Word of God abides in you (Holy Spirit)