Exodus 12:38-40

American Standard Version

³⁸ And a mixed multitude went up also with them; and flocks, and herds, even very much cattle. ³⁹ And they baked unleavened cakes of the dough which they brought forth out of Egypt; for it was not leavened, because they were thrust out of Egypt, and could not tarry, neither had they prepared for themselves any victuals. ⁴⁰ Now the time that the children of Israel dwelt in Egypt was four hundred and thirty years.