To come to a rational conclusion, we need to define our sources of information. If we look at all evidence from history including all documents, archaeology and scientific investigation. We find out that Jesus was practical, wise, insightful, charismatic and intielgent.
(Please notice, I have not calimed the Bible as the sole source of this information and I’ve not claimed that it has any special properties relative to other sources.)
He also claimed to be God. This leads to the conumdrum (From:
The Divinity of Christ):
Christ was either God or a bad man.
Unbelievers almost always say he was a good man, not a bad man; that he was a great moral teacher, a sage, a philosopher, a moralist, and a prophet, not a criminal, not a man who deserved to be crucified. But a good man is the one thing he could not possibly have been according to simple common sense and logic. For he
claimed to be God. He said, “Before Abraham was, I Am”, thus speaking the word no Jew dares to speak because it is God’s own private name, spoken by God himself to Moses at the burning bush. Jesus wanted everyone to believe that he was God. He wanted people to worship him. He claimed to forgive everyone’s sins against everyone. (Who can do that but God, the One offended in every sin?)
Now what would we think of a person who went around making these claims today? Certainly not that he was a good man or a sage. There are only two possibilities: he either speaks the truth or not. If he speaks the truth, he is God and the case is closed. We must believe him and worship him. If he does not speak the truth, then he is not God but a mere man. But a mere man who wants you to worship him as God is not a good man. He is a very bad man indeed, either morally or intellectually. If he knows that he is not God, then he is morally bad, a liar trying deliberately to deceive you into blasphemy. If he does not know that he is not God, if he sincerely thinks he is God, then he is intellectually bad—in fact, insane.