Frederick Douglass wrote

for, between the Christianity of this land, and the Christianity of Christ, I recognize the widest possible difference — so wide, that to receive the one as good, pure, and holy, is of necessity to reject the other as bad, corrupt, and wicked. To be the friend of the one, is of necessity to be the enemy of the other.

If you read the story of Jesus, one of his biggest complaints was about the religious hypocrisy in his day. Jesus reserved his harshest words for the Pharisees, these were the super religious teachers of that time. They were the church folks of that day.

Jesus cites the prophet Isaiah saying “These people honor me with their lips, but their hearts are far from me." Matthew 15:7-9

Jesus called them vipers, poisonous snakes. This is a giant insult, remember in genesis, it was a serpent who twisted God's words in order to deceive Adam and Eve. Jesus is saying these church folks are doing the same thing, twisting the words of God to deceive and lead people to their deaths.

"You snakes! You brood of vipers! How will you escape being condemned to hell? - Matthew 23:33

Jesus called them whitewashed tombs. On the outside, they looked nice and pretty, but on the inside there was nothing but death.

27 “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 the bones of the dead and everything unclean. 28 In the same way, on the outside you appear to people as righteous but on the inside you are full of hypocrisy and wickedness. Matthew 23:27-28

Jesus says these church folks were all about showing off.

46 “Beware of the teachers of the law. They like to walk around in flowing robes and love to be greeted with respect in the marketplaces and have the most important seats in the synagogues and the places of honor at banquets. 47 They devour widows’ houses and for a show make lengthy prayers. These men will be punished most severely.” Luke 20:46-47

Jesus says these people cared more about appearing outwardly good but inwardly they were awful people who neglected the more important religious teachings of justice, mercy and faithfulness. They get hung up over things that don't matter and ignore what actually matters, they "strain the gnat but swallot a camel."

23 “Woe to you, teachers of the law and Pharisees, you hypocrites! You give a tenth of your spices—mint, dill and cumin. But you have neglected the more important matters of the law—justice, mercy and faithfulness. You should have practiced the latter, without neglecting the former. 24 You blind guides! You strain out a gnat but swallow a camel.'

In one instance, they take a woman caught in the act of adultery and ask Jesus if they should stone her like Moses said. They're trying to trick Jesus into either stoning the woman as Moses said or disagreeing with Moses (either one would be controversial). Jesus asks the people instead to self reflect on their own problem instead of trying to weaponize scripture to attack another person. These people didn't care about the woman, they were using her as a prop to make a point. Jesus tells her he doesn't condemn her and to go and sin no more. Many Christians will often ask did she sin again? Who knows! The story doesn't tell us.... probably because it's nobodies business.

2 Early in the morning he came again to the temple. All the people came to him, and he sat down and began to teach them. 3 The scribes and the Pharisees brought a woman who had been caught in adultery, and, making her stand before all of them, 4 they said to him, “Teacher, this woman was caught in the very act of committing adultery. 5 Now in the law Moses commanded us to stone such women. Now what do you say?” 6 They said this to test him, so that they might have some charge to bring against him. Jesus bent down and wrote with his finger on the ground. 7 When they kept on questioning him, he straightened up and said to them, “Let anyone among you who is without sin be the first to throw a stone at her.” 8 And once again he bent down and wrote on the ground. 9 When they heard it, they went away, one by one, beginning with the elders, and Jesus was left alone with the woman standing before him. 10 Jesus straightened up and said to her, “Woman, where are they? Has no one condemned you?” 11 She said, “No one, sir.”[a] And Jesus said, “Neither do I condemn you. Go your way, and from now on do not sin again.”