And they journeyed from Elim, and the whole assembly of the children of Israel came into the wilderness of Sin, which is between Elim and Sinai, on the fifteenth day of the second month after their departure out of the land of Egypt.
And the whole assembly of the children of Israel murmured against Moses and against Aaron in the wilderness.
And the children of Israel said to them, Would that we had died by the hand of Jehovah in the land of Egypt, when we sat by the flesh-pots, when we ate bread to the full; for ye have brought us out into this wilderness, to kill this whole congregation with hunger!
Then said Jehovah to Moses, Behold, I will rain bread from heaven for you; and the people shall go out and gather the daily need on its day, that I may prove them, whether they will walk in my law, or not.
References for Exodus 16:4
And it shall come to pass on the sixth day, that they shall prepare what they have brought in; and it shall be twice as much as they shall gather daily.
And Moses and Aaron said to all the children of Israel, In the evening, then shall ye know that Jehovah has brought you out from the land of Egypt;