Numbers 33:38-40

21st Century King James Version

³⁸ And Aaron the priest went up into Mount Hor at the commandment of the Lord, and died there in the fortieth year after the children of Israel had come out of the land of Egypt, on the first day of the fifth month.

³⁹ And Aaron was a hundred and twenty and three years old when he died on Mount Hor.

⁴⁰ And King Arad the Canaanite, who dwelt in the South in the land of Canaan, heard of the coming of the children of Israel.