'Ward' in the Bible

if ye are right men, let one of your brethren be bound in the house of your ward, and ye, go, carry in corn for the famine of your houses,

and they place him in ward, for it is not explained what is to be done to him.

And David cometh in unto his house at Jerusalem, and the king taketh the ten women-concubines -- whom he had left to keep the house, and putteth them in a house of ward, and sustaineth them, and unto them he hath not gone in, and they are shut up unto the day of their death, in widowhood living.

And he crieth -- a lion, 'On a watch-tower my lord, I am standing continually by day, And on my ward I am stationed whole nights.

And it cometh to pass, he is at the gate of Benjamin, and there is a master of the ward -- and his name is Irijah son of Shelemiah, son of Hananiah -- and he catcheth Jeremiah the prophet, saying, 'Unto the Chaldeans thou art falling.'