Numbers 33:3
On the fifteenth day of the first month they went out from Rameses; on the day after the Passover the children of Israel went out by the power of the Lord before the eyes of all the Egyptians,On the fifteenth day of the first month they went out from Rameses; on the day after the Passover the children of Israel went out by the power of the Lord before the eyes of all the Egyptians,