God now withheld the manna,
1. To show that it was not an ordinary production of nature, as by the long and constant enjoyment of it they might be prone to think; but an extraordinary and special gift of God to supply their necessity. 2. because God would not be prodigal of his favours, nor expose them to contempt by giving them superfluously, or by working miracles where ordinary means were sufficient. On the morrow after they had eaten of the old corn, i.e. on the seventeenth day.