'Writing' in the Bible

My little children, I am writing these [things] to you in order that you may not sin. And if anyone sins, we have an advocate with the Father, Jesus Christ the righteous [one],

Dear friends, I am not writing a new commandment to you, but an old commandment which you have had from the beginning. The old commandment is the message which you have heard.

Again, I am writing a new commandment to you, which is true in him and in you, because the darkness is passing away and the true light already is shining.

I am writing to you, little children, because your sins have been forgiven you on account of his name.

I am writing to you, fathers, because you have known the [One who is] from the beginning. I am writing to you, young men, because you have conquered the evil one.