Beloved, I am writing you no new commandment, but an old commandment that you have had from the beginning; the old commandment is the word that you have heard.
Yet I am writing you a new commandment that is true in him and in you, because a the darkness is passing away and the true light is already shining.
Whoever says, "I am in the light," while hating a brother or sister, b is still in the darkness.
Whoever loves a brother or sister c lives in the light, and in such a person d there is no cause for stumbling.
But whoever hates another believer e is in the darkness, walks in the darkness, and does not know the way to go, because the darkness has brought on blindness.
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved. (New Revised Standard Bible Version Online)