Exodus 12:38-40

New Revised Standard Version Catholic Edition

³⁸ A mixed crowd also went up with them, and livestock in great numbers, both flocks and herds. ³⁹ They baked unleavened cakes of the dough that they had brought out of Egypt; it was not leavened, because they were driven out of Egypt and could not wait, nor had they prepared any provisions for themselves.

⁴⁰ The time that the Israelites had lived in Egypt was four hundred thirty years.