widow's cruse

If education could help the poor as well help the overall economy, then the leaky bucket would turn into a “widow’s cruse,” with more benefit to the poor than was taken from the rich.

Memories of Elisha and the ravens, of the widow's cruse, of the loaves and fishes, must have floated through the radiant fog in poor Melpomene's mind.

Yet, like the widow's cruse of old, its casket is never empty, for even when it has given its all, the next needy case will find succour at that door.

The money collected by Franz was like the contents of the widow's cruse.

More wonderful still: like the "widow's cruse," this trumpet never grows empty; from its uptilted mouth the flow of song will stream on continuously, if so desired and directed.