Numbers 9:5

9:5 And they observed the Passover on the fourteenth day of the first month at twilight in the wilderness of Sinai; in accordance with all that the Lord had commanded Moses, so the Israelites did.

Numbers 11:32

11:32 And the people stayed up all that day, all that night, and all the next day, and gathered the quail. The one who gathered the least gathered ten homers, and they spread them out for themselves all around the camp.

Numbers 29:12

The Feast of Temporary Shelters

29:12 “‘On the fifteenth day of the seventh month you are to have a holy assembly; you must do no ordinary work, and you must keep a festival to the Lord for seven days.

Numbers 30:14

30:14 But if her husband remains completely silent about her from day to day, he thus confirms all her vows or all her obligations which she is under; he confirms them because he remained silent about when he heard them.

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.