They went out from us, but they didn't belong to us; for if they had belonged to us, they would have continued with us. But they left, that they might be revealed that none of them belong to us.

 2:12-14 I am writing to you, little children, Because your sins are forgiven you through his name. I am writing to you, fathers, Because you have come to know him who is from the beginning. I am writing to you, young men, Because you have overcome the Evil One. I have written to you, little ones, Because you have come to know the Father. I have written to you, fathers, Because you have come to know him who is from the beginning. I have written to you, young men, Because you are strong, And the word of God abides in you, And you have overcome the Evil One. 