'New Commandment' in the Bible

A new commandment I give you, that ye love one another; as I have loved you, that ye also love one another.

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

Again, a new commandment I write to you, which thing is true in him, and in you; because the darkness is passing away, and the true light now shineth.

And now I beseech thee, Cyria, not as writing to thee a new commandment, but that which we have had from the beginning, that we love one another.