Moffatt(i)
10 Here is how the children of God and the children of the devil are recognized; anyone who does not practise righteousness does not belong to God, and neither does he who has no love for his brother.
11 For this is the message you have learned from the very beginning, that we are to love one another:
12 we are not to be like Cain, who belonged to the evil One and slew his brother. And why did he slay him? Because his own deeds were evil and his brother's just.
13 Do not wonder, brothers, that the world hates you.
14 We know we have crossed from death to life, because we love the brotherhood; he who has no love [for his brother] remains in death.