Who am I? I am an Overcomer

David Keddie teaches from 1 John 2:12-14 about how, in Christ, we have "overcome the evil one":

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.