1 John 3:10-20

10 By this the children of God are manifest, and the children of the devil: whosoever doeth not righteousness is not of God, neither is he that loveth not his brother.

11 For this is the message that ye heard from the beginning: that we should love one another.

12 Be not as Cain, who was of that wicked one and slew his brother. And why did he slay him? Because his own works were evil, and his brother's righteous.

13 Marvel not, my brethren, if the world hate you.

14 We know that we have passed from death unto life, because we love the brethren. He that loveth not his brother abideth in death.

15 Whosoever hateth his brother is a murderer, and ye know that no murderer hath eternal life abiding in him.

16 Hereby we perceive the love of God: because He laid down His life for us. And we ought to lay down our lives for the brethren.

17 But whoso hath this world's goods and seeth his brother have need, and shutteth up the compassion of his heart from him, how dwelleth the love of God in him?

18 My little children, let us not love in word, neither in tongue, but in deed and in truth.

19 And hereby we know that we are of the truth, and shall assure our hearts before Him.

20 For if our heart condemn us, God is greater than our heart and knoweth all things.