The Hidden Meaning Behind Departing from Raamses

"And they journeyed from Raamses." The Lord said to Israel, "When you were in Egypt, you were scattered for a period of forty days. I brought you together for a brief moment in Raamses, and now you are scattered in all the lands. I will gather you again, as it is said, 'And it shall come to pass on that day, the Lord will extend His hand a second time.'" "On the morrow of the Passover, the children of Israel went out." It is written, "The Lord your God brought you out of Egypt at night." But did they not go out at night? Was it not during the day? Rather, it teaches us that the redemption began for them in the evening, as it is said, "And this day shall be a memorial for you." It is a day that is a memorial for you, but we did not hear which day it is. When it says, "And Moses said to the people, 'Remember...'," it is still unclear. But when it says, "On the morrow of the Passover, on the fifteenth day of the festival," and they did not go out until the festival day itself, it becomes clear.