Numbers 33:3 in the King James Version
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.
Context
2 Moses wrote the starting points of their journeys by the commandment of the LORD. These are their journeys according to their starting points.
3 They traveled from Rameses in the first month, on the fifteenth day of the first month; on the next day after the Passover, the children of Israel went out with a high hand in the sight of all the Egyptians,
4 while the Egyptians were burying all their firstborn, whom the LORD had struck among them. The LORD also executed judgments on their gods.