Behold, how great a love the Father has bestowed on us, that we should be called children of God! For this cause the world doesn't know us, because it didn't know him.

 (ii) For that very reason the fact that a man loves his brother men is the final proof that he has passed from death to life. As A. E. Brooke puts it: "Life is a chance of learning how to love." Life without love is death. To love is to be in the light; to hate is to remain in the dark. We need no further proof of that than to look at the face of a man who is in love and the face of a man who is full of hate; it will show the glory or the blackness in his heart. 