Numbers 20:22-24

²²And when they had removed the camp from Cades, they came to mount Her, which is in the borders of the land of Edom:

²³Where the Lord spoke to Moses:

²⁴Let Aaron, saith he, go to his people: for he shall not go into the land which I have given the children of Israel, because he was incredulous to my words, at the waters of contradiction.