Exodus 12:39-41

Young's Literal Translation

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;

⁴¹ and it cometh to pass, at the end of four hundred and thirty years -- yea, it cometh to pass in this self-same day -- all the hosts of Jehovah have gone out from the land of Egypt.