'Shut' in the Bible

saying, We found the prison shut with all security, and the keepers standing at the doors; but when we had opened them, within we found no one.

And the whole city was moved, and there was a concourse of the people; and having laid hold on Paul they drew him out of the temple, and immediately the doors were shut.

Which also I did in Jerusalem, and myself shut up in prisons many of the saints, having received the authority from the chief priests; and when they were put to death I gave my vote.