Ruth 2:18
She took it up, and went into the city; and her mother-in-law saw what she had gleaned: and she brought forth and gave to her that which she had left after she was sufficed.
Ruth 2:14
At meal time Boaz said to her, "Come here, and eat of the bread, and dip your morsel in the vinegar." She sat beside the reapers, and they reached her parched grain, and she ate, and was satisfied, and left some of it.
John 6:12-13
When they were filled, he said to his disciples, "Gather up the broken pieces which are left over, that nothing be lost."
1 Timothy 5:4
But if any widow has children or grandchildren, let them learn first to show piety towards their own family, and to repay their parents, for this is acceptable in the sight of God.