They all repaired to Rameses by Moses's order from all parts of the land. In the sight of all the Egyptians. See Exodus 14:8 Numbers 15:30.
Related Commentaries of Numbers 33:3
Numbers 33:3
3 And they departed from Rameses in the first month, on the fifteenth day of the first month; on the morrow after the passover the children of Israel went out with an high hand in the sight of all the Egyptians.