Exodus 12:31-41

Then he called for Moses and Aaron at night and said, “Get up, get out from among my people, both you and the Israelites; and go, serve the LORD, as you said. Take both your flocks and your herds, as you have said, and go, and [ask your God to] bless me also.” The Egyptians [anxiously] urged the people [to leave], to send them out of the land quickly, for they said, “We will all be dead.” So the people took their dough before it was leavened, their kneading bowls being bound up in their clothes on their shoulders. Now the Israelites had acted in accordance with the word of Moses; and they had asked the Egyptians for articles of silver and articles of gold, and clothing. The LORD gave the people favor in the sight of the Egyptians, so that they gave them what they asked. And so they plundered the Egyptians [of those things]. Now the Israelites journeyed from Rameses to Succoth, about six hundred thousand men on foot, besides [the women and] the children. A mixed multitude [of non-Israelites from foreign nations] also went with them, along with both flocks and herds, a very large number of livestock. [Num 11:4; Deut 29:11] And they baked unleavened cakes of the dough which they brought from Egypt; it was not leavened, since they were driven [quickly] from Egypt and could not delay, nor had they prepared any food for themselves. Now the period of time the children of Israel lived in Egypt was four hundred and thirty years. [Gen 15:13, 14] At the end of the four hundred and thirty years, to that very day, all the hosts of the LORD [gathered into tribal armies] left the land of Egypt.