'Shut' in the Bible

And David came to his house at Jerusalem: and the king took the ten women to whom he had given the care of the house, and had them shut up, and gave them the necessaries of life, but did not go near them. So they were shut up till the day of their death, living as widows.

And Joab and his men got him shut up in Abel of Beth-maacah, and put up an earthwork against the town: and all Joab's men did their best to get the wall broken down.