William Burkitt on Matthew 15:37

They did all eat, not a crumb or a bit, but to fulness and satisfaction; yet seven baskets remain; answering the number of the loaves, as the twelve baskets in the former miracle answered to the twelve apostles: in both, more is left than was at first set on: it is hard to say, which was the greater miracle, the miraculous eating, or miraculous leaving. If we consider what they eat, we may justly wonder that they left anything; if what they left that they eat anything. (Dr. Fuller.)

Observe lastly, Christ would not have these fragments lost but gatherd up; the great housekeeper of the world will not allow the loss of his orts. O how dreadful will the account of those be, who have the large and plentiful estates to answer for as lost, being spent upon their lusts in riot and excess! Dr. Fuller