As much as I hate to say this, if all he was doing was reading endlessly to disrupt the meeting, then he should have been arrested. If he was reading a limited passage to make a point, then he was within his rights.
After the council had asked him to be seated, however, he was guilty of disrupting a pubic meeting. I support his right to civil disobedience as a means of free speech, but I'm sure that he was well aware that the result of his actions would be his arrest. There's nothing wrong with civil disobedience as a public protest, as long as you don't whine about the resulting arrest and civil penalties.
I agree. There is insufficient information provided to know which it was.
Robert's Rules of Order don't seem to prevail today.
It seems they were justified in arresting him if he was in fact speaking out of order. But the comment about not being able to read the Bible from the podium is way uncalled for.