Berean Standard Bible (BSB)
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.
World English Bible (WEB)
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.
Strong's King James
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}.
The F.O.G *
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 Message *
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.
Young's Literal Translation
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;