And Aaron was one hundred and twenty three years old when he died in Mount Hor. He was eighty three when he stood before Pharaoh, Exodus 7:7, and forty years he had been with Israel since, which make this number; he was three years older than Moses.
Related Commentaries of Numbers 33:39
Numbers 33:39
39 And Aaron was an hundred and twenty and three years old when he died in mount Hor.