120729 A New Commandment From of Old

"Beloved, I am writing you no new commandment, ·but an old commandment that you had fromthe beginning" (2:7). What does this mean?"At the same time, it is a new commandment that I am writing to you, which is true in him and inyou, because the darkness is passing away and the true light is already shining" (2:8). Why wouldJohn first say, "I am writing you no new commandment," then say, "at the same time, it is a newcommandment that I am writing to you"?How can a brother or sister in Christ come to transgress the warning of 2:9? .What does "loving" your brother have to do with "abiding in the light" (2:10)?