Make a tree good and its fruit will be good, or make a tree bad and its fruit will be bad, for a tree is recognized by its fruit. You brood of vipers, how can you who are evil say anything good? For out of the overflow of the heart the mouth speaks. The good man brings good things out of the good stored up in him, and the evil man brings evil things out of the evil stored up in him. But I tell you that men will have to give account on the day of judgment for every careless word they have spoken. For by your words you will be acquitted, and by your words you will be condemned.
Matthew 12:33-36. Was Jesus being un-Christlike for bluntly calling out the hard-hearted and evil?
“Woe to you, teachers of the law and Pharisees, you hypocrites! You are like whitewashed tombs, which look beautiful on the outside but on the inside are full of dead men’s bones and everything unclean. In the same way, on the outside you appear to people as righteous but on the inside you are full of hypocrisy and wickedness. Woe to you, teachers of the law and Pharisees, you hypocrites! You build tombs for the prophets and decorate the graves of the righteous. And you say, ‘If we had lived in the days of our forefathers, we would not have taken part with them in shedding the blood of the prophets.’ So you testify against yourselves that you are the descendants of those who murdered the prophets. Fill up, then, the measure of the sin of your forefathers! You snakes! You brood of vipers! How will you escape being condemned to hell?”
Matthew 23:27-33. Jesus again.
“You stiff-necked people! Your hearts and ears are still uncircumcised. You are just like your ancestors: You always resist the Holy Spirit! Was there ever a prophet your ancestors did not persecute? They even killed those who predicted the coming of the Righteous One. And now you have betrayed and murdered him— you who have received the law that was given through angels but have not obeyed it.” When the members of the Sanhedrin heard this, they were furious and gnashed their teeth at him.
Acts 7:51-54. Stephen speaking to the Sanhedrin before they stoned him. Was he being un-Christian-like for speaking the ugly truth to ugly people?
I rest my case.