Everyone angry with his brother subject to judgement
Scripture reference
Matthew 5:22 (ASV)
22but I say unto you, that every one who is angry with his brother shall be in danger of the judgment; and whosoever shall say to his brother, Raca, shall be in danger of the council; and whosoever shall say, Thou fool, shall be in danger of the hell of fire.
Stories
Nadir, a Muslim background believer, shows that ideologies command murder, but Jesus commands love.