Verse 23. - By the coast of the land of Edom. Mount Her was on the eastern side of the Arabah, which at this point certainly formed the frontier of Edom; but it was no doubt untenanted, owing to its bare and precipitous character, and therefore was not reckoned as the property of Edom. We may suppose that at this time the encampment stretched along the Arabah in front of the mountain (see on Numbers 33:30; Deuteronomy 10:6).

20:22-29 God bids Aaron prepare to die. There is something of displeasure in these orders. Aaron must not enter Canaan, because he had failed in his duty at the waters of strife. There is much of mercy in them. Aaron, though he dies for his transgression, dies with ease, and in honour. He is gathered to his people, as one who dies in the arms of Divine grace. There is much significancy in these orders. Aaron must not enter Canaan, to show that the Levitical priesthood could make nothing perfect; that must be done by bringing in a better hope. Aaron submits, and dies in the method and manner appointed; and, for aught that appears, with as much cheerfulness as if he had been going to bed. It was a great satisfaction to Aaron to see his son, who was dear to him, preferred; and his office preserved and secured: especially, to see in this a figure of Christ's everlasting priesthood. A good man would desire, if it were the will of God, not to outlive his usefulness. Why should we covet to continue any longer in this world, than while we may do some service in it for God and our generation?And the Lord spake unto Moses and Aaron in Mount Hor,.... When they were at the foot of that mountain, in the valley adjoining to it:

by the coast of the land of Edom; which they were still upon the borders of, and were going round it, not being permitted to go through it:

saying; as follows.