1 John 3:10-20

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

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

12 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 to life, because we love the brethren. He that loveth not [his] brother, abideth in death.

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

16 By this 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 he who hath this world's good, and seeth his brother have need, and shutteth up his bowels [of compassion] 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 by this we know that we are of the truth, and shall assure our hearts before him.

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