These verses seem simple on the surface but really are a mystery. Our former pastor, who has moved to a larger church and got a lot of notoriety from a sermon he preached on a sensitive issue, used to explain that the rabbis taught that the Messiah (according to Edersheim, I think) would heal the blind and raise the dead. So Jesus does, which leads to verse 23, the multitudes believing in him. “Multitudes” is a tricky word. Thousands, in the book of Acts, believed in the early church, and they were Jews in Jerusalem, so the Jews per se were not against Jesus. But multitudes also were calling for his crucifixion. These multitudes did not have to deal with social and mass media, which give a faulty view of reality. On cue, the Pharisees claim he can cast out demons because he is controlled by Satan, that is, a sorcerer. Jesus claims to do it by the Spirit of God (the Holy Spirit), and they have called that Spirit Satanic, therefore committing blasphemy.