15Anyone who has hate for his brother is a taker of life, and you may be certain that no taker of life has eternal life in him.
16In this we see what love is, because he gave his life for us; and it is right for us to give our lives for the brothers.
17But if a man has this world's goods, and sees that his brother is in need, and keeps his heart shut against his brother, how is it possible for the love of God to be in him?
18My little children, do not let our love be in word and in tongue, but let it be in act and in good faith.
19In this way we may be certain that we are true, and may give our heart comfort before him,
20When our heart says that we have done wrong; because God is greater than our heart, and has knowledge of all things.
21My loved ones, if our heart does not say that we have done wrong, we have no fear before him;