Exodus 12:38-40

Young's Literal Translation

³⁸ and a great rabble also hath gone up with them, and flock and herd -- very much cattle.

³⁹ And they bake with the dough which they have brought out from Egypt unleavened cakes, for it hath not fermented; for they have been cast out of Egypt, and have not been able to delay, and also provision they have not made for themselves.

⁴⁰ And the dwelling of the sons of Israel which they have dwelt in Egypt [is] four hundred and thirty years;