Adam Clarke on 1 Kings 17:16

The barrel of meal wasted not - She continued to take out of her jar and out of her bottle the quantity of meal and oil requisite for the consumption of her household; and without carefully estimating what was left, she went with confidence each time for a supply, and was never disappointed. This miracle was very like that wrought by Jesus at the marriage at Cana in Galilee: as the servants drew the water out of the pots, they found it turned into wine; and thus they continued to draw wine from the water-pots till the guests had been sufficiently supplied.