Exodus 12:34-39

12:34 So the people took their dough before the yeast was added, with their kneading troughs bound up in their clothing on their shoulders. 12:35 Now the Israelites had done as Moses told them – they had requested from the Egyptians silver and gold items and clothing. 12:36 The Lord gave the people favor in the sight of the Egyptians, and they gave them whatever they wanted, and so they plundered Egypt.

12:37 The Israelites journeyed from Rameses to Sukkoth. There were about 600,000 men on foot, plus their dependants. 12:38 A mixed multitude also went up with them, and flocks and herds – a very large number of cattle. 12:39 They baked cakes of bread without yeast using the dough they had brought from Egypt, for it was made without yeast – because they were thrust out of Egypt and were not able to delay, they could not prepare food for themselves either.