Exodus 12:41-42

ECB(i) 41 And so be it, at the end of the four hundred years and thirty years, even that selfsame day, so be it, all the hosts of Yah Veh go from the land of Misrayim. 42 It is a night to be guarded to Yah Veh for bringing them from the land of Misrayim: this is that night of Yah Veh to be guarded by all the sons of Yisra El in their generations.