What is the meaning of 1 John 2:7?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

Beloved, I am not writing to you a new commandment, but an old one, which you have had from the beginning. This commandment is the message you have heard.

Berean Standard Bible (BSB)

Brothers, I write no new commandment to you, but an old commandment which you had from the beginning. The old commandment is the word which you heard from the beginning.

World English Bible (WEB)

Brethren{G80}, I write{G1125}{(G5719)} no{G3756} new{G2537} commandment{G1785} unto you{G5213}, but{G235} an old{G3820} commandment{G1785} which{G3739} ye had{G2192}{(G5707)} from{G575} the beginning{G746}. The old{G3820} commandment{G1785} is{G2076}{(G5748)} the word{G3056} which{G3739} ye have heard{G191}{(G5656)} from{G575} the beginning{G746}.

Strong's King James

Beloved ones, I am not writing a new commandment to you, but rather an old commandment, which you have had from the beginning. The old commandment is the Word (Logos) which you have heard.

The F.O.G*

[7] Beloved friends, I'm not writing you a new command, but an ancient one you've had from the beginning. This old command is the message you've already heard about loving one another.Dearest friends, I am not writing a new commandment to you. On the contrary, it is an old command that you have had from the beginning. This old commandment is the Divine Expression that you have already heard.

The F.O.G Paraphrase

Brethren, a new command I write not to you, but an old command, that ye had from the beginning—the old command is the word that ye heard from the beginning;

Young's Literal Translation