1 John 4:20 - If a man says, "I love God," and hates his brother, he is a liar; for he who doesn't love his brother whom he has seen, how can he love God whom he has not seen?
Matthew 7:1 - 5 - "Don't judge, so that you won't be judged. For with whatever judgment you judge, you will be judged; and with whatever measure you measure, it will be measured to you. Why do you see the speck that is in your brother's eye, but don't consider the beam that is in your own eye? Or how will you tell your brother, `Let me remove the speck from your eye;' and behold, the beam is in your own eye? You hypocrite! First remove the beam out of your own eye, and then you can see clearly to remove the speck out of your brother's eye.
1 John 2:9 - He who says he is in the light and hates his brother, is in the darkness even until now.
Matthew 7:15 - "Beware of false prophets, who come to you in sheep's clothing, but inwardly are ravening wolves.
Jude 1:16 - These are murmurers and complainers, walking after their lusts (and their mouth speaks proud things), showing respect of persons to gain advantage.