'Crumbs' in the Bible

if I have eaten my few crumbs alonewithout letting the fatherless eat any of it—

He throws His hailstones like crumbs.Who can withstand His cold?

“Yes, Lord,” she said, “yet even the dogs eat the crumbs that fall from their masters’ table!”

But she replied to Him, “Lord, even the dogs under the table eat the children’s crumbs.”