Parallel
Numbers 21:4
Brenton's English Septuagint · Berean Standard Bible
And having departed from mount Or by the way [leading] to the Red Sea, they compassed the land of Edom, and the people lost courage by the way.
Then they set out from Mount Hor along the route to the Red Sea (note: Or the Sea of Reeds), in order to bypass the land of Edom. But the people grew impatient on the journey