English Standard Version
At the same time, it is a new commandment that I am writing to you, which is true in him and in you, because the darkness is passing away and the true light is already shining.New International Version
Yet I am writing you a new command; its truth is seen in him and you, because the darkness is passing and the true light is already shining.Catholic Public Domain Version
Then too, I am writing to you a new commandment, which is the Truth in him and in you. For the darkness has passed away, and the true Light is now shining