Exodus 12:37-42

Brenton(i) 37 And the children Israel departed from Ramesses to Socchoth, to the full number of six hundred thousand footmen, even men, besides the baggage. 38 And a great mixed company went up with them, and sheep and oxen and very much cattle. 39 And they baked the dough which they brought out of Egypt, unleavened cakes, for it had not been leavened; for the Egyptians cast them out, and they could not remain, neither did they prepare provision for themselves for the journey. 40 And the sojourning of the children of Israel, while they sojourned in the land of Egypt and the land of Chanaan, was four hundred and thirty years. 41 And it came to pass after the four hundred and thirty years, all the forces of the Lord came forth out of the land of Egypt by night. 42 It is a watch kept to the Lord, so that he should bring them out of the land of Egypt; that very night is a watch kept to the Lord, so that it should be to all the children of Israel to their generations.