Thematic Bible: Who abides in the light

Dear friends, I am not writing a new commandment to you, but an old commandment which you have had from the beginning. The old commandment is the message which you have heard. Again, I am writing a new commandment to you, which is true in him and in you, because the darkness is passing away and the true light already is shining. The one who says [he] is in the light and hates his brother is in the darkness until now. read more.
The one who loves his brother resides in the light, and [there] is no cause for stumbling in him.