Excellent question :clap
jesus the real man has very little historicity
However we do know that he did teach the coming kingdom of god.
However, the content of such teaching is up for debate.
Historical Jesus - Wikipedia, the free encyclopedia
He told surprising and original parables, many of them about the coming
Kingdom of God.
[6] Some scholars credit the apocalyptic declarations of the Gospels to him, while others portray his Kingdom of God as a
moral one, and not
apocalyptic in nature.
What we have with the gospels is only but a faction or a small piece of the total view of what he really taught. We can only guess because what we have, or "ALL" we have are legends written and edited by people who not only never heard a word pass his lips, but didnt live in the area either. A long time had passed before the gospels were written and you have to wonder how much was built around Pauls teachings. And with paul he never talked about the man, only the supernatural dogma that holds almost no historicity at all.
With that said its all guesses since the man has so little historicity.
so heres mine.
According to the gospels he was put to death for perverting the nation, being a tax cheat, and claiming to be the king. yet he is said to claim that his kingdom is not of this world. We do know there was a war over taxes around the time he was born and a tax war after his death. he preached to tax collectors and had a tax collector as a disciple. He was said to have told his disciples to throw away their beggar bowls and staffs in some accounts, and "I would think" that this was so they had nothing that could be taxed, so as not to be able to fund the roman taxation. I feel he preached not to pay taxes and tried to get the tax collectors to stop ripping off the people. He was even question as to "why doesnt he pay taxes" For me this is a overlooked aspect of his message since the gospels were written for a roman audience. Its obvious jesus hated the roman appointed high priest [Caiaphas] and how he handled jewish money turning the temple into a huge money making enterprise for romans. All jews hated taxes and jesus was no different.
Im sure he preached the kingdom of god and the one way to beat romans and restore the land of Israel was through their money. the "SOLE" purpose of roman rule in the area was to extort all the taxes they possibly could without crippling the culture.
Besides being a healer im sure he taught a version of judaism that included baptism
and possibly carried on some of the theology from John the baptist's teachings. How much is unknown.
By looking at the culture and enviroment he was raised in a pattern develops, but the extent are only guesses like mine.