Food Miracles

And they all ate and were satisfied. And they took up twelve baskets full of the broken pieces left over. And those who ate were about five thousand men, besides women and children. (Matthew 14:20-21 ESV)

And they all ate and were satisfied. And they took up seven baskets full of the broken pieces left over. Those who ate were four thousand men, besides women and children. (Matthew 15:37-38 ESV)

But Jesus, aware of this, said, "O you of little faith, why are you discussing among yourselves the fact that you have no bread? Do you not yet perceive? Do you not remember the five loaves for the five thousand, and how many baskets you gathered? Or the seven loaves for the four thousand, and how many baskets you gathered? (Matthew 16:8-10 ESV)

And the people of Israel did so. They gathered, some more, some less. But when they measured it with an omer, whoever gathered much had nothing left over, and whoever gathered little had no lack. Each of them gathered as much as he could eat. (Exodus 16:17-18 ESV)

When I looked at the two food miracles, manna in the Old Testament and feeding of 5000 and 4000 in the New Testament, I noticed that Jesus provided more than enough whereas God through Moses gave the exact amount.

For the law was given through Moses; grace and truth came through Jesus Christ. (John 1:17 ESV)