So far in our study of 1 John, we have learnt that to know God means to live in the light and fellowship with Him, and that obedience to His commandments is the result of loving Him. Let's continue with 1 John 2:7-11;
7 Dear friends, I am not writing a new commandment for you; rather it is an old one you have had from the very beginning. This old commandment—to love one another—is the same message you heard before.8 Yet it is also new. Jesus lived the truth of this commandment, and you also are living it. For the darkness is disappearing, and the true light is already shining. 9 If anyone claims, “I am living in the light,” but hates a fellow believer, that person is still living in darkness. 10 Anyone who loves a fellow believer is living in the light and does not cause others to stumble. 11 But anyone who hates a fellow believer is still living and walking in darkness. Such a person does not know the way to go, having been blinded by the darkness.
These verses reiterate the truth of what living in the light means - you cannot walk with God yet hate His people. You cannot fellowship with God but not want to fellowship with those He loves. The light gives us the ability to see how God behaves. His way is a way of love and not hate, He truly loves those He calls family. Since they are our family too, we should also love the brethren .