19. We love Him, because He first loved us.
20. If anyone says, I love God, and hates (detests, abominates) his brother [in Christ], he is a liar; for he who does not love his brother, whom he has seen, cannot love God, Whom he has not seen.
21. And this command (charge, order, injunction) we have from Him: that he who loves God shall love his brother [believer] also.