(Exodus 12:41) "and it was at the end of four hundred and thirty years": We are hereby apprised that when the time arrived, the L–rd did not delay them for one moment. On the fifteenth of Nissan the ministering angels came to Abraham to apprise him (that Isaac would be born); (on the fifteenth of Nissan he was born) and on the fifteenth of Nissan the decree went forth (in the covenant) between the pieces, it being written "And it was at the end"—there was one end for all of them. "and it was on this very same day that all the hosts of the L–rd went forth": (The Shechinah, too, went forth with them.)