Initially, the widow at Zarephath has "only a handful of flour in a jar and a little oil in a jug. And now I am gathering a couple of sticks that I may go in and prepare it for myself and my son, that we may eat it and die." Elijah asks her for some food and tells her "thus says the LORD, the God of Israel, 'The jar of flour shall not be spent, and the jug of oil shall not be empty, until the day that the LORD sends rain upon the earth.'" By the providence of God, "she and he and her household ate for many days."
"Her household" (בֵיתָהּ) here is really just her son, but the multitude of people that this term could imply matches the abundance of the provisions that don't run out.
