Tomorrow we'll focus on the story of Moses in Exodus. (Exodus, Chapter 2:11-12; 12:33, 12:40-42):

"One day, after Moses had grown up, he went out to where his own people were and watched them at their hard labor. He saw an Egyptian beating a Hebrew, one of his own people. Looking this way and that and seeing no one, he killed the Egyptian and hid him in the sand.

The Egyptians urged the people to hurry and leave the country. “For otherwise,” they said, “we will all die!”

Now the length of time the Israelite people lived in Egypt was 430 years. At the end of the 430 years, to the very day, all the Lord’s divisions left Egypt. Because the Lord kept vigil that night to bring them out of Egypt, on this night all the Israelites are to keep vigil to honor the Lord for the generations to come."