It was a night of watching for Adonai to bring them out of the land of Egypt. This same night is a night of vigil for Adonai, for all Bnei-Yisrael throughout their generations.
After Pharaoh had let the people go, God did not lead them along the road to the land of the Philistines, although that was nearby, for God said, “The people might change their minds if they see war and return to Egypt.”
Moses said to the people, “Remember this day, on which you came out from Egypt, out of the house of bondage. For by a strong hand Adonai brought you out from this place. No hametz may be eaten.
So it will be like a sign on your hand and a reminder between your eyes, so that the Torah of Adonai may be in your mouth. For with a strong hand Adonai has brought you out of Egypt.