Then they left Elim and journeyed into the Sin Desert, between Elim and Mount Sinai. They arrived there a month after leaving Egypt.
References for Exodus 16:1
There, too, the whole community of Israel spoke bitterly against Moses and Aaron.
"Oh, that we were back in Egypt," they moaned. "It would have been better if the LORD had killed us there! At least there we had plenty to eat. But now you have brought us into this desert to starve us to death."
Then the LORD said to Moses, "Look, I'm going to rain down food from heaven for you. The people can go out each day and pick up as much food as they need for that day. I will test them in this to see whether they will follow my instructions.
Tell them to pick up twice as much as usual on the sixth day of each week."
Then Moses and Aaron called a meeting of all the people of Israel and told them, "In the evening you will realize that it was the LORD who brought you out of the land of Egypt.