Exodus 12:39-41

New Revised Standard Version, Anglicised Catholic Edition

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 and thirty years. ⁴¹ At the end of four hundred and thirty years, on that very day, all the companies of the Lord went out from the land of Egypt.