The people were expressing how amazed they were that Jesus had the authority to command demons to leave a person. This can be written as a statement. AT: "These are amazing words!" or "His words are amazing!" (See: [[rc://en/ta/man/translate/figs-rquestion]])
This is a comment about what happened after the story that was caused by the events within the story itself. (See: [[rc://en/ta/man/translate/writing-endofstory]])
# news about him began to spread
"reports about Jesus began to spread" or "people began to spread the news about Jesus"