I found this on a website called Who is Jesus-really. There are dozens of similar website:

In his famous book Mere Christianity, Lewis makes this statement, “A man who was merely a man and said the sort of things Jesus said would not be a great moral teacher. He would either be a lunatic – on the level with a man who says he is a poached egg – or he would be the devil of hell. You must take your choice. Either this was, and is, the Son of God, or else a madman or something worse. You can shut Him up for a fool or you can fall at His feet and call Him Lord and God. But let us not come with any patronizing nonsense about His being a great human teacher. He has not left that open to us.”

This “trilemma” fails logically because it does not include all choices, such as “legendary,” “mythological,” or “fictional.” We cannot say with positive evidence if the Jesus character was based on a historical character, based on several historical characters, or a fictionally invented character like Sherlock Holmes or Batman. We do not have enough historical evidence to make a decisive judgment, although the current evidence points to the mythological camp. However we can talk about the character of Jesus as presented in the gospel stories. Just as we can talk about “Dracula” and declare him a vampire based on the fictional novel, whether we believe in vampires or not. We can say that as presented in the gospels, Jesus is certainly presented as a madman. Just glancing at all his sayings from the gospel of Mark, we can find these traits and beliefs that reveal strong signs of mental illness. He:

1. defends his actions (baptism, begging, casting out demons, eating with prostitutes and tax collectors) and the actions of his followers against numerous charges of breaking Jewish laws by denouncing laws.  He does not acknowledge that his actions could be disturbing to others, or the laws could have legitimate applications.
2. attacks all Jewish authority figures, including Priests, Pharisees and Scribes, as hypocrites, traitors and worse. “Scribes,” for example, he says, “rob from the widows.” Scribes simply copied written works and to denounce all of them as a group as stealing from widows is absurd.
3. preaches self violence (“If your eye offends, tear it out…”).
4. believes in unlimited power based on the will (volunteerism), whatever you pray for, you will receive. Anybody who has done this experimentally will know that it is false and crazy, and logically impossible. What if one person prays for rain and another for Sunshine? What if one person prays for Caesar’s death and another person prays for his long life?
5. believes that an Apocalypse with wars and natural disasters is coming soon in the lifetime of his listeners. He believes an eternal Kingdom of God will follow.
6. promises his followers and himself will be unbelievably rich in the Kingdom of God.
7. believes in ghosts. (“But whoever blasphemies against the Holy Spirit will never be forgiven; he is guilty of an eternal sin.”)

8. calls for laying of hands on children (Pedophilia?) and being trusting like children (desire to return to imaginary idealized, conflict-less childhood state)
9. claims money-changers (bankers) are robbers.
10.believes own followers are untrustworthy and his father, God, has planned his torture and death and ordained him as a sacrifice to save all mankind.

Based on this, we are in agreement with C.S. Lewis, the Jesus character was not a great human teacher, the character of Jesus as presented in the gospels, is #3 on his list: lord, liar, Lunatic. As John Cleese might delicately put it, he’s:

  • nutty as a fruitcake, off his rocker, crazy as a loon, out of his tree, mad as a hatter, bananas, moon struck, daft, potty, gaga, got a screw loose, got bats in the belfry, a few cards short of a full deck, three french fries short of a happy meal, working with an antenna that doesn’t pick up all the channels, knitting with one needle, doesn’t have both oars in the water, a box of Cracker Jack with no prize,  reading off an empty disk, got nothing between the stethoscopes,  all booster – no payload, and his little red choo-choo’s gone chugging ’round the bend…

Christianity teaches one to be like Jesus, however the character of Jesus is meglomaniacal, paranoid and delusional. It teaches a metaphysical world view which is generally incompatible with a scientific and humanistic social outlook.