Numbers 3:4

3:4 Nadab and Abihu died before the Lord when they offered strange fire before the Lord in the wilderness of Sinai, and they had no children. So Eleazar and Ithamar ministered as priests in the presence of Aaron their father.

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 19:16

19:16 And whoever touches the body of someone killed with a sword in the open fields, or the body of someone who died of natural causes, or a human bone, or a grave, will be unclean seven days.

Numbers 20:28

20:28 And Moses removed Aaron’s garments and put them on his son Eleazar. So Aaron died there on the top of the mountain. And Moses and Eleazar came down from the mountain.

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.