Shemu’ĕl Bĕt (2 Samuel) 20:3

And Dawiḏ came to his house at Yerushalayim. And the sovereign took the ten women, his concubines whom he had left to look after the house, and put them in a protected house and supported them, but did not go in to them. So they were shut up to the day of their death, living in widowhood.