Numbers 33:37-39

International Standard Version

³⁷ They traveled from Kadesh, then rested in Mount Hor at the outskirts of the land of Edom.

³⁸ Then Aaron the priest ascended Mount Hor in obedience to the Lord’s command and died there, in the fortieth year after the Israelis had come out of the land of Egypt, on the first day of the fifth month. ³⁹ Aaron was 123 years old when he died on Mount Hor.