'Need' in the Bible

May it come on the head of Joab and all his father's family: among the men of Joab's family may there ever be some who are diseased or lepers, or who do the work of women, or are put to the sword, or are wasted from need of food!

Now Barzillai was a very old man, as much as eighty years old: and he had given the king everything he had need of, while he was at Mahanaim, for he was a very great man.