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.
KJV
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.
ASV
Beloved, no new commandment write I unto you, but an old commandment which ye had from the beginning: the old commandment is the word which ye heard.