I have written to you, fathers, because you know him who is from the beginning. I have written to you, young men, because you are strong, and the word of God remains in you, and you have overcome the evil one.

 (ii) In 1 John 2:29 John comes back to a thought which is never far from his mind. The only way in which a man can prove that he is abiding in Christ is by the righteousness of his life. The profession a man makes will always be proved or disproved by his practice. 