The Bible says that at any one time there were 600,000 fighting men, or probably about two and a half million Israelites, who wandered in the harsh environment of the desert for the forty long years of the Exodus epic. Although their complaints about food are discussed, they seem to have never complained about not having the clothes they needed. In this long journey, children were born and grew up, the elderly died and were buried reverentially, and clothes and shoes must have become torn or simply worn out, yet they had no means of growing or producing cloth for their clothing.
Perhaps the answer is in the scholarly view that the Exodus never really happened. Israel Finkelstein says that over ninety per cent of scholars do not believe that the Exodus happened as described in the Bible.
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The long journey during which Moses led the Israelites out of Egypt and back to Canaan is known as the Exodus.
Moses
God split the Sea of Reeds (Exodus 14) for the Israelites to cross.
The Israelites ate unleavened bread during Passover to commemorate their hasty departure from Egypt when they did not have time to let their bread rise. Eating unleavened bread during this time serves as a reminder of their ancestors' freedom from slavery.
The book that recounts how God cared for the Israelites is the Bible, specifically the Old Testament books of Exodus, Leviticus, Numbers, and Deuteronomy. These books describe God's provision and protection for the Israelites during their exodus from Egypt and journey to the Promised Land.
Matzah originated during the Israelites' exodus from Egypt, so yes, they did eat it.
Passover is the feast that celebrates the exodus of the Israelites from Egypt. It commemorates the Israelites' liberation from slavery and their journey to freedom led by Moses. During Passover, a Seder meal is held where specific foods and prayers are shared to retell the story of the exodus.
The passover was initiated on the Old Testament when the Angel of Death passed over the Israelites during the plagues on the Egyptians before the Exodus. This is found in Exodus 12. The passover feast was meant to remind the Israelites about how they were delivered from enslavement in Egypt.
During the 40 years in the wilderness there were the Clouds of Glory (Exodus ch.13, Numbers ch.9).
Manna and water were provided to the Israelites in the wilderness. Manna was not like any other food.
Nisan, which is the month of spring (Exodus ch.16). In the Western calendar, the Exodus was in April.
During the killing of the firstborn of Egypt, God passed over the homes of the Israelites, sparing them (Exodus ch.12).