Exodus 12:34-39

34So the people took their dough before it was leavened, their kneading bowls being bound up in their cloaks on their shoulders.

35The people of Israel had also done as Moses told them, for they had asked the Egyptians for silver and gold jewelry and for clothing.

36And the Lord had given the people favor in the sight of the Egyptians, so that they let them have what they asked. Thus they plundered the Egyptians.

37And the people of Israel journeyed from Rameses to Succoth, about six hundred thousand men on foot, besides women and children.

38A mixed multitude also went up with them, and very much livestock, both flocks and herds.

39And they baked unleavened cakes of the dough that they had brought out of Egypt, for it was not leavened, because they were thrust out of Egypt and could not wait, nor had they prepared any provisions for themselves.