Numbers 33:39-41

New King James Version

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

⁴⁰ Now ^(A)the king of Arad, the Canaanite, who dwelt in the South in the land of Canaan, heard of the coming of the children of Israel.

⁴¹ So they departed from Mount Hor and camped at Zalmonah.