So what did people say He said, that would make Him a lunatic if they weren’t true?
The claim the He and the Father are one.
The Pharisees and Sauducees decided this was Jesus death sentence for blasphemy - claiming to be God. Each group was the self-appointed experts on the Jewish Mosaic laws, but they were split ino 2 factions bc Sauducees did not believe in eternal life after death while the Pharisees did.