King James Version
Brethren, I write no new commandment unto you, but an old commandment which ye had from the beginning. The old commandment is the word which ye have heard from the beginning.English Standard Version
Beloved, I am writing you no new commandment, but an old commandment that you had from the beginning. The old commandment is the word that you have heard.New International Version
Dear friends, I am not writing you a new command but an old one, which you have had since the beginning. This old command is the message you have heard.