Rashi on II Kings
She came and told, etc. She came for advice, whether to sell [the oil] or to wait until it would become even more expensive. He said to her, “Go sell, for there is enough [to pay] all your debt, and for you and your sons to live with the remainder, until the dead are resurrected.”9He blessed them with eternal life, i.e., life until the Resurrection of the Dead.—Malbim