'Written' in the Bible

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.

I have not written to you because you don't know the truth, but because you know it, and because no lie is of the truth.

These things I have written to you concerning those who would lead you astray.

These things I have written to you who believe in the name of the Son of God, that you may know that you have eternal life, and that you may continue to believe in the name of the Son of God.