Numbers 3:13

3:13 because all the firstborn are mine. When I destroyed all the firstborn in the land of Egypt, I set apart for myself all the firstborn in Israel, both man and beast. They belong to me. I am the Lord.”

Numbers 14:2

14:2 And all the Israelites murmured against Moses and Aaron, and the whole congregation said to them, “If only we had died in the land of Egypt, or if only we had perished in this wilderness!

Numbers 33:3

33:3 They departed from Rameses in the first month, on the fifteenth day of the first month; on the day after the Passover the Israelites went out defiantly in plain sight of all the Egyptians.

Numbers 33:38

33:38 Aaron the priest ascended Mount Hor at the command of the Lord, and he died there in the fortieth year after the Israelites had come out of the land of Egypt on the first day of the fifth month.